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want to ask how to wiring inductive proximity sensor to ramps 1.4 board?

Posted by wendychai80 
want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
February 27, 2015 02:09AM
Hi allsmiling smiley i want to ask about wiring inductive sensor to ramps1.4 board.
I already got the sensor and waiting for the risistor to arrive.i dont know where to plug it into the ramps board.

the sensor wire is brown(+) black and blue(-)

to where should i connect the brown(+) and blue(-) ? to + - on the power supply or the 5A 11A on the terminal block on the ramps board?

and the black wire from the sensor should go where? (+ - S) on the z-endstop pin on ramps board?
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 03, 2015 07:07PM
You pretty much answered the question, but if you haven't figured out yet:

Brown goes to + or 3 pin up from edge of board, blues goes to - 2 pin and black goes to signal 1 pin.

Be sure to power the sensor with at least the minimum voltage required or the sensor might not work or it's sensing distance will be reduced drastically.

May I ask why you selected the inductive sensor?

I'm using a capacitive one....
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 04, 2015 12:14AM
i following this guide auto bed levelling he using inductive sensor, i cant find or maybe miss any other guide for autobed levelling using the sensor.

im following how cdru told me how to wiring the sensor here and the sensor got light when it near my aluminium bed but as you know i following the youtube video above and done what he do on the firmware and when i sending comment M119 the endstop keep open even when the sensor near or just touch the bed (the sensor led also active when it near the bed)
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 04, 2015 11:03AM
Aluminum isn't good by itself for inductive sensors, try M119 but put a regular bolt close to it and see if that works, if so, get a sheet of metal an put it under the bed.

That's the main reason I used capacitive ones, they react to any material.

The other possibility is that the logic of the endstop is inverted, have you tried M119 with sensor away from the bed? If shows triggered then you only need to invert the logic in marlin.

Let me know.

Edited 1 time(s). Last edit at 03/04/2015 11:04AM by ggherbaz.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 04, 2015 12:27PM
i already try put the sensor near bolt,scissor,knife,screwdriver and M119 keep open even if sensor near or far from the metal thing. I think there must be some setting inside configuration.h i didn't configure correctly, below is my mechanical setting in the configuration.h

//===========================================================================
//=============================Mechanical Settings===========================
//===========================================================================

// Uncomment the following line to enable CoreXY kinematics
// #define COREXY

// coarse Endstop Settings
#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors

#ifndef ENDSTOPPULLUPS
// fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
// #define ENDSTOPPULLUP_XMAX
// #define ENDSTOPPULLUP_YMAX
// #define ENDSTOPPULLUP_ZMAX
// #define ENDSTOPPULLUP_XMIN
// #define ENDSTOPPULLUP_YMIN
// #define ENDSTOPPULLUP_ZMIN
#endif

#ifdef ENDSTOPPULLUPS
#define ENDSTOPPULLUP_XMAX
#define ENDSTOPPULLUP_YMAX
#define ENDSTOPPULLUP_ZMAX
#define ENDSTOPPULLUP_XMIN
#define ENDSTOPPULLUP_YMIN
#define ENDSTOPPULLUP_ZMIN
#endif

// The pullups are needed if you directly connect a mechanical endswitch between the signal and ground pins.
const bool X_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool Y_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool Z_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
//#define DISABLE_MAX_ENDSTOPS
//#define DISABLE_MIN_ENDSTOPS

// Disable max endstops for compatibility with endstop checking routine
#if defined(COREXY) && !defined(DISABLE_MAX_ENDSTOPS)
#define DISABLE_MAX_ENDSTOPS
#endif

// For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1
#define X_ENABLE_ON 0
#define Y_ENABLE_ON 0
#define Z_ENABLE_ON 0
#define E_ENABLE_ON 0 // For all extruders

// Disables axis when it's not being used.
#define DISABLE_X false
#define DISABLE_Y false
#define DISABLE_Z false
#define DISABLE_E false // For all extruders
#define DISABLE_INACTIVE_EXTRUDER true //disable only inactive extruders and keep active extruder enabled

#define INVERT_X_DIR true // for Mendel set to false, for Orca set to true
#define INVERT_Y_DIR true // for Mendel set to true, for Orca set to false
#define INVERT_Z_DIR false // for Mendel set to false, for Orca set to true
#define INVERT_E0_DIR true // for direct drive extruder v9 set to true, for geared extruder set to false
#define INVERT_E1_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false
#define INVERT_E2_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false

// ENDSTOP SETTINGS:
// Sets direction of endstops when homing; 1=MAX, -1=MIN
#define X_HOME_DIR -1
#define Y_HOME_DIR -1
#define Z_HOME_DIR -1

#define min_software_endstops false // If true, axis won't move to coordinates less than HOME_POS.
#define max_software_endstops true // If true, axis won't move to coordinates greater than the defined lengths below.

// Travel limits after homing
#define X_MAX_POS 210
#define X_MIN_POS 0
#define Y_MAX_POS 215
#define Y_MIN_POS 0
#define Z_MAX_POS 180
#define Z_MIN_POS 0

#define X_MAX_LENGTH (X_MAX_POS - X_MIN_POS)
#define Y_MAX_LENGTH (Y_MAX_POS - Y_MIN_POS)
#define Z_MAX_LENGTH (Z_MAX_POS - Z_MIN_POS)
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 04, 2015 02:54PM
const bool Z_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.

This one might need to be changed, butwill depend on sensor type: PNP or NPN and normally close or normally open.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 04, 2015 03:19PM
You might have a bad sensor, have you tried it out by itself?

Plug brown to + of your power supply, blue to - and connect an 12 volts bulb between blue and black. If it lights up immediately and turns off when you put a bolt close to it or if it's off and lights on when bolt close to it, then the sensor it's ok, if nothing happens then you will have to replace it.

Other possibility is that the trace on the board is damaged, have you tried it on a different location? X or Y endstops location.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 05, 2015 01:32AM
this is what i try just now, plug in the sensor into Y-endstop pin and Y-endstop to z open pronterface and send M119 and the sensor is working, but when i change it back to sensor to Z-endstop pin it didnt work it keep open even when i put metal thing touching the sensor. Is my board damaged? but when im using servo for autobed levelling everything working fine.

So let see here:

plug sensor onto Y-endstop pins = ok
plug sensor back to Z-endstop pin = not working
using servo = ok

Below is my configuration.h for the servo autobed levelling

Quote
Configuration.h

#ifndef CONFIGURATION_H
#define CONFIGURATION_H

#include "boards.h"

// This configuration file contains the basic settings.
// Advanced settings can be found in Configuration_adv.h
// BASIC SETTINGS: select your board type, temperature sensor type, axis scaling, and endstop configuration

//===========================================================================
//============================= DELTA Printer ===============================
//===========================================================================
// For a Delta printer replace the configuration files with the files in the
// example_configurations/delta directory.
//

//===========================================================================
//============================= SCARA Printer ===============================
//===========================================================================
// For a Delta printer replace the configuration files with the files in the
// example_configurations/SCARA directory.
//

// User-specified version info of this build to display in [Pronterface, etc] terminal window during
// startup. Implementation of an idea by Prof Braino to inform user that any changes made to this
// build by the user have been successfully uploaded into firmware.
#define STRING_VERSION_CONFIG_H __DATE__ " " __TIME__ // build date and time
#define STRING_CONFIG_H_AUTHOR "(none, default config)" // Who made the changes.

// SERIAL_PORT selects which serial port should be used for communication with the host.
// This allows the connection of wireless adapters (for instance) to non-default port pins.
// Serial port 0 is still used by the Arduino bootloader regardless of this setting.
#define SERIAL_PORT 0

// This determines the communication speed of the printer
#define BAUDRATE 115200

// This enables the serial port associated to the Bluetooth interface
//#define BTENABLED // Enable BT interface on AT90USB devices

// The following define selects which electronics board you have.
// Please choose the name from boards.h that matches your setup
#ifndef MOTHERBOARD
#define MOTHERBOARD 33
#endif

// Define this to set a custom name for your generic Mendel,
// #define CUSTOM_MENDEL_NAME "This Mendel"

// Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
// You can use an online service to generate a random UUID. (eg [www.uuidgenerator.net])
// #define MACHINE_UUID "00000000-0000-0000-0000-000000000000"

// This defines the number of extruders
#define EXTRUDERS 1

//// The following define selects which power supply you have. Please choose the one that matches your setup
// 1 = ATX
// 2 = X-Box 360 203Watts (the blue wire connected to PS_ON and the red wire to VCC)

#define POWER_SUPPLY 1

// Define this to have the electronics keep the power supply off on startup. If you don't know what this is leave it.
// #define PS_DEFAULT_OFF

//===========================================================================
//=============================Thermal Settings ============================
//===========================================================================
//
//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
//
//// Temperature sensor settings:
// -2 is thermocouple with MAX6675 (only for sensor 0)
// -1 is thermocouple with AD595
// 0 is not used
// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
// 3 is Mendel-parts thermistor (4.7k pullup)
// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
// 10 is 100k RS thermistor 198-961 (4.7k pullup)
// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
// 13 is 100k Hisens 3950 1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
// 20 is the PT100 circuit found in the Ultimainboard V2.x
// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
//
// 1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
// (but gives greater accuracy and more stable PID)
// 51 is 100k thermistor - EPCOS (1k pullup)
// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
//
// 1047 is Pt1000 with 4k7 pullup
// 1010 is Pt1000 with 1k pullup (non standard)
// 147 is Pt100 with 4k7 pullup
// 110 is Pt100 with 1k pullup (non standard)

#define TEMP_SENSOR_0 1
#define TEMP_SENSOR_1 -1
#define TEMP_SENSOR_2 0
#define TEMP_SENSOR_BED 1

// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
//#define TEMP_SENSOR_1_AS_REDUNDANT
#define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10

// Actual temperature must be close to target for this long before M109 returns success
#define TEMP_RESIDENCY_TIME 10 // (seconds)
#define TEMP_HYSTERESIS 3 // (degC) range of +/- temperatures considered "close" to the target one
#define TEMP_WINDOW 1 // (degC) Window around target to start the residency timer x degC early.

// The minimal temperature defines the temperature below which the heater will not be enabled It is used
// to check that the wiring to the thermistor is not broken.
// Otherwise this would lead to the heater being powered on all the time.
#define HEATER_0_MINTEMP 5
#define HEATER_1_MINTEMP 5
#define HEATER_2_MINTEMP 5
#define BED_MINTEMP 5

// When temperature exceeds max temp, your heater will be switched off.
// This feature exists to protect your hotend from overheating accidentally, but *NOT* from thermistor short/failure!
// You should use MINTEMP for thermistor short/failure protection.
#define HEATER_0_MAXTEMP 275
#define HEATER_1_MAXTEMP 275
#define HEATER_2_MAXTEMP 275
#define BED_MAXTEMP 150

// If your bed has low resistance e.g. .6 ohm and throws the fuse you can duty cycle it to reduce the
// average current. The value should be an integer and the heat bed will be turned on for 1 interval of
// HEATER_BED_DUTY_CYCLE_DIVIDER intervals.
//#define HEATER_BED_DUTY_CYCLE_DIVIDER 4

// If you want the M105 heater power reported in watts, define the BED_WATTS, and (shared for all extruders) EXTRUDER_WATTS
//#define EXTRUDER_WATTS (12.0*12.0/6.7) // P=I^2/R
//#define BED_WATTS (12.0*12.0/1.1) // P=I^2/R

// PID settings:
// Comment the following line to disable PID and enable bang-bang.
#define PIDTEMP
#define BANG_MAX 255 // limits current to nozzle while in bang-bang mode; 255=full current
#define PID_MAX BANG_MAX // limits current to nozzle while PID is active (see PID_FUNCTIONAL_RANGE below); 255=full current
#ifdef PIDTEMP
//#define PID_DEBUG // Sends debug data to the serial port.
//#define PID_OPENLOOP 1 // Puts PID in open loop. M104/M140 sets the output power from 0 to PID_MAX
//#define SLOW_PWM_HEATERS // PWM with very low frequency (roughly 0.125Hz=8s) and minimum state time of approximately 1s useful for heaters driven by a relay
#define PID_FUNCTIONAL_RANGE 10 // If the temperature difference between the target temperature and the actual temperature
// is more then PID_FUNCTIONAL_RANGE then the PID will be shut off and the heater will be set to min/max.
#define PID_INTEGRAL_DRIVE_MAX PID_MAX //limit for the integral term
#define K1 0.95 //smoothing factor within the PID
#define PID_dT ((OVERSAMPLENR * 10.0)/(F_CPU / 64.0 / 256.0)) //sampling period of the temperature routine

// If you are using a pre-configured hotend then you can use one of the value sets by uncommenting it
// Ultimaker
#define DEFAULT_Kp 17.90
#define DEFAULT_Ki 1.10
#define DEFAULT_Kd 72.97

// MakerGear
// #define DEFAULT_Kp 7.0
// #define DEFAULT_Ki 0.1
// #define DEFAULT_Kd 12

// Mendel Parts V9 on 12V
// #define DEFAULT_Kp 63.0
// #define DEFAULT_Ki 2.25
// #define DEFAULT_Kd 440
#endif // PIDTEMP

// Bed Temperature Control
// Select PID or bang-bang with PIDTEMPBED. If bang-bang, BED_LIMIT_SWITCHING will enable hysteresis
//
// Uncomment this to enable PID on the bed. It uses the same frequency PWM as the extruder.
// If your PID_dT above is the default, and correct for your hardware/configuration, that means 7.689Hz,
// which is fine for driving a square wave into a resistive load and does not significantly impact you FET heating.
// This also works fine on a Fotek SSR-10DA Solid State Relay into a 250W heater.
// If your configuration is significantly different than this and you don't understand the issues involved, you probably
// shouldn't use bed PID until someone else verifies your hardware works.
// If this is enabled, find your own PID constants below.
//#define PIDTEMPBED
//
//#define BED_LIMIT_SWITCHING

// This sets the max power delivered to the bed, and replaces the HEATER_BED_DUTY_CYCLE_DIVIDER option.
// all forms of bed control obey this (PID, bang-bang, bang-bang with hysteresis)
// setting this to anything other than 255 enables a form of PWM to the bed just like HEATER_BED_DUTY_CYCLE_DIVIDER did,
// so you shouldn't use it unless you are OK with PWM on your bed. (see the comment on enabling PIDTEMPBED)
#define MAX_BED_POWER 255 // limits duty cycle to bed; 255=full current

#ifdef PIDTEMPBED
//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
#define DEFAULT_bedKp 10.00
#define DEFAULT_bedKi .023
#define DEFAULT_bedKd 305.4

//120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
//from pidautotune
// #define DEFAULT_bedKp 97.1
// #define DEFAULT_bedKi 1.41
// #define DEFAULT_bedKd 1675.16

// FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.
#endif // PIDTEMPBED



//this prevents dangerous Extruder moves, i.e. if the temperature is under the limit
//can be software-disabled for whatever purposes by
#define PREVENT_DANGEROUS_EXTRUDE
//if PREVENT_DANGEROUS_EXTRUDE is on, you can still disable (uncomment) very long bits of extrusion separately.
#define PREVENT_LENGTHY_EXTRUDE

#define EXTRUDE_MINTEMP 170
#define EXTRUDE_MAXLENGTH (X_MAX_LENGTH+Y_MAX_LENGTH) //prevent extrusion of very large distances.

/*================== Thermal Runaway Protection ==============================
This is a feature to protect your printer from burn up in flames if it has
a thermistor coming off place (this happened to a friend of mine recently and
motivated me writing this feature).

The issue: If a thermistor come off, it will read a lower temperature than actual.
The system will turn the heater on forever, burning up the filament and anything
else around.

After the temperature reaches the target for the first time, this feature will
start measuring for how long the current temperature stays below the target
minus _HYSTERESIS (set_temperature - THERMAL_RUNAWAY_PROTECTION_HYSTERESIS).

If it stays longer than _PERIOD, it means the thermistor temperature
cannot catch up with the target, so something *may be* wrong. Then, to be on the
safe side, the system will he halt.

Bear in mind the count down will just start AFTER the first time the
thermistor temperature is over the target, so you will have no problem if
your extruder heater takes 2 minutes to hit the target on heating.

*/
// If you want to enable this feature for all your extruder heaters,
// uncomment the 2 defines below:

// Parameters for all extruder heaters
//#define THERMAL_RUNAWAY_PROTECTION_PERIOD 40 //in seconds
//#define THERMAL_RUNAWAY_PROTECTION_HYSTERESIS 4 // in degree Celsius

// If you want to enable this feature for your bed heater,
// uncomment the 2 defines below:

// Parameters for the bed heater
//#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
//#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
//===========================================================================


//===========================================================================
//=============================Mechanical Settings===========================
//===========================================================================

// Uncomment the following line to enable CoreXY kinematics
// #define COREXY

// coarse Endstop Settings
#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors

#ifndef ENDSTOPPULLUPS
// fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
// #define ENDSTOPPULLUP_XMAX
// #define ENDSTOPPULLUP_YMAX
// #define ENDSTOPPULLUP_ZMAX
// #define ENDSTOPPULLUP_XMIN
// #define ENDSTOPPULLUP_YMIN
// #define ENDSTOPPULLUP_ZMIN
#endif

#ifdef ENDSTOPPULLUPS
#define ENDSTOPPULLUP_XMAX
#define ENDSTOPPULLUP_YMAX
#define ENDSTOPPULLUP_ZMAX
#define ENDSTOPPULLUP_XMIN
#define ENDSTOPPULLUP_YMIN
#define ENDSTOPPULLUP_ZMIN
#endif

// The pullups are needed if you directly connect a mechanical endswitch between the signal and ground pins.
const bool X_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool Y_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool Z_MIN_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool X_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool Y_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of the endstop.
//#define DISABLE_MAX_ENDSTOPS
//#define DISABLE_MIN_ENDSTOPS

// Disable max endstops for compatibility with endstop checking routine
#if defined(COREXY) && !defined(DISABLE_MAX_ENDSTOPS)
#define DISABLE_MAX_ENDSTOPS
#endif

// For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1
#define X_ENABLE_ON 0
#define Y_ENABLE_ON 0
#define Z_ENABLE_ON 0
#define E_ENABLE_ON 0 // For all extruders

// Disables axis when it's not being used.
#define DISABLE_X false
#define DISABLE_Y false
#define DISABLE_Z false
#define DISABLE_E false // For all extruders
#define DISABLE_INACTIVE_EXTRUDER true //disable only inactive extruders and keep active extruder enabled

#define INVERT_X_DIR true // for Mendel set to false, for Orca set to true
#define INVERT_Y_DIR true // for Mendel set to true, for Orca set to false
#define INVERT_Z_DIR false // for Mendel set to false, for Orca set to true
#define INVERT_E0_DIR true // for direct drive extruder v9 set to true, for geared extruder set to false
#define INVERT_E1_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false
#define INVERT_E2_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false

// ENDSTOP SETTINGS:
// Sets direction of endstops when homing; 1=MAX, -1=MIN
#define X_HOME_DIR -1
#define Y_HOME_DIR -1
#define Z_HOME_DIR -1

#define min_software_endstops false // If true, axis won't move to coordinates less than HOME_POS.
#define max_software_endstops true // If true, axis won't move to coordinates greater than the defined lengths below.

// Travel limits after homing
#define X_MAX_POS 210
#define X_MIN_POS 0
#define Y_MAX_POS 215
#define Y_MIN_POS 0
#define Z_MAX_POS 180
#define Z_MIN_POS 0

#define X_MAX_LENGTH (X_MAX_POS - X_MIN_POS)
#define Y_MAX_LENGTH (Y_MAX_POS - Y_MIN_POS)
#define Z_MAX_LENGTH (Z_MAX_POS - Z_MIN_POS)
//============================= Bed Auto Leveling ===========================

#define ENABLE_AUTO_BED_LEVELING // Delete the comment to enable (remove // at the start of the line)
#define Z_PROBE_REPEATABILITY_TEST // If not commented out, Z-Probe Repeatability test will be included if Auto Bed Leveling is Enabled.

#ifdef ENABLE_AUTO_BED_LEVELING

// There are 2 different ways to pick the X and Y locations to probe:

// - "grid" mode
// Probe every point in a rectangular grid
// You must specify the rectangle, and the density of sample points
// This mode is preferred because there are more measurements.
// It used to be called ACCURATE_BED_LEVELING but "grid" is more descriptive

// - "3-point" mode
// Probe 3 arbitrary points on the bed (that aren't colinear)
// You must specify the X & Y coordinates of all 3 points

#define AUTO_BED_LEVELING_GRID
// with AUTO_BED_LEVELING_GRID, the bed is sampled in a
// AUTO_BED_LEVELING_GRID_POINTSxAUTO_BED_LEVELING_GRID_POINTS grid
// and least squares solution is calculated
// Note: this feature occupies 10'206 byte
#ifdef AUTO_BED_LEVELING_GRID

// set the rectangle in which to probe
#define LEFT_PROBE_BED_POSITION 30
#define RIGHT_PROBE_BED_POSITION 180
#define BACK_PROBE_BED_POSITION 180
#define FRONT_PROBE_BED_POSITION 30

// set the number of grid points per dimension
// I wouldn't see a reason to go above 3 (=9 probing points on the bed)
#define AUTO_BED_LEVELING_GRID_POINTS 2


#else // not AUTO_BED_LEVELING_GRID
// with no grid, just probe 3 arbitrary points. A simple cross-product
// is used to esimate the plane of the print bed

#define ABL_PROBE_PT_1_X 15
#define ABL_PROBE_PT_1_Y 180
#define ABL_PROBE_PT_2_X 15
#define ABL_PROBE_PT_2_Y 20
#define ABL_PROBE_PT_3_X 170
#define ABL_PROBE_PT_3_Y 20

#endif // AUTO_BED_LEVELING_GRID


// these are the offsets to the probe relative to the extruder tip (Hotend - Probe)
// X and Y offsets must be integers
#define X_PROBE_OFFSET_FROM_EXTRUDER 27
#define Y_PROBE_OFFSET_FROM_EXTRUDER -28
#define Z_PROBE_OFFSET_FROM_EXTRUDER -15.30

#define Z_RAISE_BEFORE_HOMING 10 // (in mm) Raise Z before homing (G28) for Probe Clearance.
// Be sure you have this distance over your Z_MAX_POS in case

#define XY_TRAVEL_SPEED 6000 // X and Y axis travel speed between probes, in mm/min

#define Z_RAISE_BEFORE_PROBING 25 //How much the extruder will be raised before traveling to the first probing point.
#define Z_RAISE_BETWEEN_PROBINGS 5 //How much the extruder will be raised when traveling from between next probing points

//#define Z_PROBE_SLED // turn on if you have a z-probe mounted on a sled like those designed by Charles Bell
//#define SLED_DOCKING_OFFSET 5 // the extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.

//If defined, the Probe servo will be turned on only during movement and then turned off to avoid jerk
//The value is the delay to turn the servo off after powered on - depends on the servo speed; 300ms is good value, but you can try lower it.
// You MUST HAVE the SERVO_ENDSTOPS defined to use here a value higher than zero otherwise your code will not compile.

#define PROBE_SERVO_DEACTIVATION_DELAY 300


//If you have enabled the Bed Auto Leveling and are using the same Z Probe for Z Homing,
//it is highly recommended you let this Z_SAFE_HOMING enabled!!!

#define Z_SAFE_HOMING // This feature is meant to avoid Z homing with probe outside the bed area.
// When defined, it will:
// - Allow Z homing only after X and Y homing AND stepper drivers still enabled
// - If stepper drivers timeout, it will need X and Y homing again before Z homing
// - Position the probe in a defined XY point before Z Homing when homing all axis (G28)
// - Block Z homing only when the probe is outside bed area.

#ifdef Z_SAFE_HOMING

#define Z_SAFE_HOMING_X_POINT (X_MAX_LENGTH/2) // X point for Z homing when homing all axis (G28)
#define Z_SAFE_HOMING_Y_POINT (Y_MAX_LENGTH/2) // Y point for Z homing when homing all axis (G28)

#endif

#ifdef AUTO_BED_LEVELING_GRID // Check if Probe_Offset * Grid Points is greater than Probing Range
#if X_PROBE_OFFSET_FROM_EXTRUDER < 0
#if (-(X_PROBE_OFFSET_FROM_EXTRUDER * (AUTO_BED_LEVELING_GRID_POINTS-1)) >= (RIGHT_PROBE_BED_POSITION - LEFT_PROBE_BED_POSITION))
#error "The X axis probing range is not enough to fit all the points defined in AUTO_BED_LEVELING_GRID_POINTS"
#endif
#else
#if ((X_PROBE_OFFSET_FROM_EXTRUDER * (AUTO_BED_LEVELING_GRID_POINTS-1)) >= (RIGHT_PROBE_BED_POSITION - LEFT_PROBE_BED_POSITION))
#error "The X axis probing range is not enough to fit all the points defined in AUTO_BED_LEVELING_GRID_POINTS"
#endif
#endif
#if Y_PROBE_OFFSET_FROM_EXTRUDER < 0
#if (-(Y_PROBE_OFFSET_FROM_EXTRUDER * (AUTO_BED_LEVELING_GRID_POINTS-1)) >= (BACK_PROBE_BED_POSITION - FRONT_PROBE_BED_POSITION))
#error "The Y axis probing range is not enough to fit all the points defined in AUTO_BED_LEVELING_GRID_POINTS"
#endif
#else
#if ((Y_PROBE_OFFSET_FROM_EXTRUDER * (AUTO_BED_LEVELING_GRID_POINTS-1)) >= (BACK_PROBE_BED_POSITION - FRONT_PROBE_BED_POSITION))
#error "The Y axis probing range is not enough to fit all the points defined in AUTO_BED_LEVELING_GRID_POINTS"
#endif
#endif


#endif

#endif // ENABLE_AUTO_BED_LEVELING


// The position of the homing switches
//#define MANUAL_HOME_POSITIONS // If defined, MANUAL_*_HOME_POS below will be used
//#define BED_CENTER_AT_0_0 // If defined, the center of the bed is at (X=0, Y=0)

//Manual homing switch locations:
// For deltabots this means top and center of the Cartesian print volume.
#define MANUAL_X_HOME_POS 0
#define MANUAL_Y_HOME_POS 0
#define MANUAL_Z_HOME_POS 0
//#define MANUAL_Z_HOME_POS 402 // For delta: Distance between nozzle and print surface after homing.

//// MOVEMENT SETTINGS
#define NUM_AXIS 4 // The axis order in all axis related arrays is X, Y, Z, E
#define HOMING_FEEDRATE {50*60, 50*60, 4*60, 0} // set the homing speeds (mm/min)

// default settings

#define DEFAULT_AXIS_STEPS_PER_UNIT {98,98,2560,102} // default steps per unit for Ultimaker
#define DEFAULT_MAX_FEEDRATE {200, 200, 5, 45} // (mm/sec)
#define DEFAULT_MAX_ACCELERATION {5000,5000,100,10000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.

#define DEFAULT_ACCELERATION 3000 // X, Y, Z and E max acceleration in mm/s^2 for printing moves
#define DEFAULT_RETRACT_ACCELERATION 3000 // X, Y, Z and E max acceleration in mm/s^2 for retracts

// Offset of the extruders (uncomment if using more than one and relying on firmware to position when changing).
// The offset has to be X=0, Y=0 for the extruder 0 hotend (default extruder).
// For the other hotends it is their distance from the extruder 0 hotend.
// #define EXTRUDER_OFFSET_X {0.0, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
// #define EXTRUDER_OFFSET_Y {0.0, 5.00} // (in mm) for each extruder, offset of the hotend on the Y axis

// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
#define DEFAULT_XYJERK 15.0 // (mm/sec)
#define DEFAULT_ZJERK 0.4 // (mm/sec)
#define DEFAULT_EJERK 5.0 // (mm/sec)

//===========================================================================
//=============================Additional Features===========================
//===========================================================================

// Custom M code points
#define CUSTOM_M_CODES
#ifdef CUSTOM_M_CODES
#define CUSTOM_M_CODE_SET_Z_PROBE_OFFSET 851
#define Z_PROBE_OFFSET_RANGE_MIN -15
#define Z_PROBE_OFFSET_RANGE_MAX -5
#endif


// EEPROM
// The microcontroller can store settings in the EEPROM, e.g. max velocity...
// M500 - stores parameters in EEPROM
// M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
// M502 - reverts to the default "factory settings". You still need to store them in EEPROM afterwards if you want to.
//define this to enable EEPROM support
//#define EEPROM_SETTINGS
//to disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out:
// please keep turned on if you can.
//#define EEPROM_CHITCHAT

// Preheat Constants
#define PLA_PREHEAT_HOTEND_TEMP 180
#define PLA_PREHEAT_HPB_TEMP 70
#define PLA_PREHEAT_FAN_SPEED 255 // Insert Value between 0 and 255

#define ABS_PREHEAT_HOTEND_TEMP 240
#define ABS_PREHEAT_HPB_TEMP 100
#define ABS_PREHEAT_FAN_SPEED 255 // Insert Value between 0 and 255

//LCD and SD support
//#define ULTRA_LCD //general LCD support, also 16x2
//#define DOGLCD // Support for SPI LCD 128x64 (Controller ST7565R graphic Display Family)
//#define SDSUPPORT // Enable SD Card Support in Hardware Console
//#define SDSLOW // Use slower SD transfer mode (not normally needed - uncomment if you're getting volume init error)
//#define SD_CHECK_AND_RETRY // Use CRC checks and retries on the SD communication
//#define ENCODER_PULSES_PER_STEP 1 // Increase if you have a high resolution encoder
//#define ENCODER_STEPS_PER_MENU_ITEM 5 // Set according to ENCODER_PULSES_PER_STEP or your liking
//#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
//#define ULTIPANEL //the UltiPanel as on Thingiverse
//#define LCD_FEEDBACK_FREQUENCY_HZ 1000 // this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
//#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100 // the duration the buzzer plays the UI feedback sound. ie Screen Click

// The MaKr3d Makr-Panel with graphic controller and SD support
// [reprap.org]
//#define MAKRPANEL

// The RepRapDiscount Smart Controller (white PCcool smiley
// [reprap.org]
//#define REPRAP_DISCOUNT_SMART_CONTROLLER

// The GADGETS3D G3D LCD/SD Controller (blue PCcool smiley
// [reprap.org]
//#define G3D_PANEL

// The RepRapDiscount FULL GRAPHIC Smart Controller (quadratic white PCcool smiley
// [reprap.org]
//
// ==> REMEMBER TO INSTALL U8glib to your ARDUINO library folder: [code.google.com]
//#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

// The RepRapWorld REPRAPWORLD_KEYPAD v1.1
// [reprapworld.com]
//#define REPRAPWORLD_KEYPAD
//#define REPRAPWORLD_KEYPAD_MOVE_STEP 10.0 // how much should be moved when a key is pressed, eg 10.0 means 10mm per click

// The Elefu RA Board Control Panel
// [www.elefu.com]
// REMEMBER TO INSTALL LiquidCrystal_I2C.h in your ARDUINO library folder: [github.com]
//#define RA_CONTROL_PANEL

//automatic expansion
#if defined (MAKRPANEL)
#define DOGLCD
#define SDSUPPORT
#define ULTIPANEL
#define NEWPANEL
#define DEFAULT_LCD_CONTRAST 17
#endif

#if defined (REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER)
#define DOGLCD
#define U8GLIB_ST7920
#define REPRAP_DISCOUNT_SMART_CONTROLLER
#endif

#if defined(ULTIMAKERCONTROLLER) || defined(REPRAP_DISCOUNT_SMART_CONTROLLER) || defined(G3D_PANEL)
#define ULTIPANEL
#define NEWPANEL
#endif

#if defined(REPRAPWORLD_KEYPAD)
#define NEWPANEL
#define ULTIPANEL
#endif
#if defined(RA_CONTROL_PANEL)
#define ULTIPANEL
#define NEWPANEL
#define LCD_I2C_TYPE_PCA8574
#define LCD_I2C_ADDRESS 0x27 // I2C Address of the port expander
#endif

//I2C PANELS

//#define LCD_I2C_SAINSMART_YWROBOT
#ifdef LCD_I2C_SAINSMART_YWROBOT
// This uses the LiquidCrystal_I2C library ( [bitbucket.org] )
// Make sure it is placed in the Arduino libraries directory.
#define LCD_I2C_TYPE_PCF8575
#define LCD_I2C_ADDRESS 0x27 // I2C Address of the port expander
#define NEWPANEL
#define ULTIPANEL
#endif

// PANELOLU2 LCD with status LEDs, separate encoder and click inputs
//#define LCD_I2C_PANELOLU2
#ifdef LCD_I2C_PANELOLU2
// This uses the LiquidTWI2 library v1.2.3 or later ( [github.com] )
// Make sure the LiquidTWI2 directory is placed in the Arduino or Sketchbook libraries subdirectory.
// (v1.2.3 no longer requires you to define PANELOLU in the LiquidTWI2.h library header file)
// Note: The PANELOLU2 encoder click input can either be directly connected to a pin
// (if BTN_ENC defined to != -1) or read through I2C (when BTN_ENC == -1).
#define LCD_I2C_TYPE_MCP23017
#define LCD_I2C_ADDRESS 0x20 // I2C Address of the port expander
#define LCD_USE_I2C_BUZZER //comment out to disable buzzer on LCD
#define NEWPANEL
#define ULTIPANEL

#ifndef ENCODER_PULSES_PER_STEP
#define ENCODER_PULSES_PER_STEP 4
#endif

#ifndef ENCODER_STEPS_PER_MENU_ITEM
#define ENCODER_STEPS_PER_MENU_ITEM 1
#endif


#ifdef LCD_USE_I2C_BUZZER
#define LCD_FEEDBACK_FREQUENCY_HZ 1000
#define LCD_FEEDBACK_FREQUENCY_DURATION_MS 100
#endif

#endif

// Panucatt VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
//#define LCD_I2C_VIKI
#ifdef LCD_I2C_VIKI
// This uses the LiquidTWI2 library v1.2.3 or later ( [github.com] )
// Make sure the LiquidTWI2 directory is placed in the Arduino or Sketchbook libraries subdirectory.
// Note: The pause/stop/resume LCD button pin should be connected to the Arduino
// BTN_ENC pin (or set BTN_ENC to -1 if not used)
#define LCD_I2C_TYPE_MCP23017
#define LCD_I2C_ADDRESS 0x20 // I2C Address of the port expander
#define LCD_USE_I2C_BUZZER //comment out to disable buzzer on LCD (requires LiquidTWI2 v1.2.3 or later)
#define NEWPANEL
#define ULTIPANEL
#endif

// Shift register panels
// ---------------------
// 2 wire Non-latching LCD SR from:
// [bitbucket.org]

//#define SAV_3DLCD
#ifdef SAV_3DLCD
#define SR_LCD_2W_NL // Non latching 2 wire shiftregister
#define NEWPANEL
#define ULTIPANEL
#endif


#ifdef ULTIPANEL
// #define NEWPANEL //enable this if you have a click-encoder panel
#define SDSUPPORT
#define ULTRA_LCD
#ifdef DOGLCD // Change number of lines to match the DOG graphic display
#define LCD_WIDTH 20
#define LCD_HEIGHT 5
#else
#define LCD_WIDTH 20
#define LCD_HEIGHT 4
#endif
#else //no panel but just LCD
#ifdef ULTRA_LCD
#ifdef DOGLCD // Change number of lines to match the 128x64 graphics display
#define LCD_WIDTH 20
#define LCD_HEIGHT 5
#else
#define LCD_WIDTH 16
#define LCD_HEIGHT 2
#endif
#endif
#endif

// default LCD contrast for dogm-like LCD displays
#ifdef DOGLCD
# ifndef DEFAULT_LCD_CONTRAST
# define DEFAULT_LCD_CONTRAST 32
# endif
#endif

// Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
//#define FAST_PWM_FAN

// Temperature status LEDs that display the hotend and bet temperature.
// If all hotends and bed temperature and temperature setpoint are < 54C then the BLUE led is on.
// Otherwise the RED led is on. There is 1C hysteresis.
//#define TEMP_STAT_LEDS

// Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
// which is not ass annoying as with the hardware PWM. On the other hand, if this frequency
// is too low, you should also increment SOFT_PWM_SCALE.
//#define FAN_SOFT_PWM

// Incrementing this by 1 will double the software PWM frequency,
// affecting heaters, and the fan if FAN_SOFT_PWM is enabled.
// However, control resolution will be halved for each increment;
// at zero value, there are 128 effective control positions.
#define SOFT_PWM_SCALE 0

// M240 Triggers a camera by emulating a Canon RC-1 Remote
// Data from: [www.doc-diy.net]
// #define PHOTOGRAPH_PIN 23

// SF send wrong arc g-codes when using Arc Point as fillet procedure
//#define SF_ARC_FIX

// Support for the BariCUDA Paste Extruder.
//#define BARICUDA

//define BlinkM/CyzRgb Support
//#define BLINKM

/*********************************************************************\
* R/C SERVO support
* Sponsored by TrinityLabs, Reworked by codexmas
**********************************************************************/

// Number of servos
//
// If you select a configuration below, this will receive a default value and does not need to be set manually
// set it manually if you have more servos than extruders and wish to manually control some
// leaving it undefined or defining as 0 will disable the servo subsystem
// If unsure, leave commented / disabled
//
#define NUM_SERVOS 3 // Servo index starts with 0 for M280 command

// Servo Endstops
//
// This allows for servo actuated endstops, primary usage is for the Z Axis to eliminate calibration or bed height changes.
// Use M206 command to correct for switch height offset to actual nozzle height. Store that setting with M500.
//
#define SERVO_ENDSTOPS {-1, -1, 0} // Servo index for X, Y, Z. Disable with -1
#define SERVO_ENDSTOP_ANGLES {0,0, 0,0, 83,0} // X,Y,Z Axis Extend and Retract angles

/**********************************************************************\
* Support for a filament diameter sensor
* Also allows adjustment of diameter at print time (vs at slicing)
* Single extruder only at this point (extruder 0)
*
* Motherboards
* 34 - RAMPS1.4 - uses Analog input 5 on the AUX2 connector
* 81 - Printrboard - Uses Analog input 2 on the Exp1 connector (version B,C,D,E)
* 301 - Rambo - uses Analog input 3
* Note may require analog pins to be defined for different motherboards
**********************************************************************/
// Uncomment below to enable
//#define FILAMENT_SENSOR

#define FILAMENT_SENSOR_EXTRUDER_NUM 0 //The number of the extruder that has the filament sensor (0,1,2)
#define MEASUREMENT_DELAY_CM 14 //measurement delay in cm. This is the distance from filament sensor to middle of barrel

#define DEFAULT_NOMINAL_FILAMENT_DIA 3.0 //Enter the diameter (in mm) of the filament generally used (3.0 mm or 1.75 mm) - this is then used in the slicer software. Used for sensor reading validation
#define MEASURED_UPPER_LIMIT 3.30 //upper limit factor used for sensor reading validation in mm
#define MEASURED_LOWER_LIMIT 1.90 //lower limit factor for sensor reading validation in mm
#define MAX_MEASUREMENT_DELAY 20 //delay buffer size in bytes (1 byte = 1cm)- limits maximum measurement delay allowable (must be larger than MEASUREMENT_DELAY_CM and lower number saves RAM)

//defines used in the code
#define DEFAULT_MEASURED_FILAMENT_DIA DEFAULT_NOMINAL_FILAMENT_DIA //set measured to nominal initially

//When using an LCD, uncomment the line below to display the Filament sensor data on the last line instead of status. Status will appear for 5 sec.
//#define FILAMENT_LCD_DISPLAY






#include "Configuration_adv.h"
#include "thermistortables.h"

#endif //__CONFIGURATION_H
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 05, 2015 08:56AM
Update

here is what i do with LED since i didnt has 12v bulb.

i connect sensor brown wire to + and Blue to - on the power supply and the black wire from the sensor to another wire that connect to - on the LED, the LED didnt lighted up when i powered it up but when i put the sensor near the metal the LED lighted up

i test it with adjustable power supply and the sensor even work on 3v so the sensor is working right? is this mean my board is damaged? but when i using the servo all working fine.

im start to get little confused already hereconfused smiley

Edited 1 time(s). Last edit at 03/05/2015 08:58AM by wendychai80.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 05, 2015 12:16PM
There is something wrong here but can't figure out:

In your firmware both Y and Z max and min have the same logic and same pullup resistor settings. If the sensor works in Y but not in Z it will lead me to believe is a trace problem, but at the same time you mention that a mechanical switch work perfect on it.

The only explanation is that the voltage at pin + in Z endstop is less than what the sensor needs. Can you test voltage for both Y and Z pins to see if there is a difference? Or connect only the brown cable to + from Y and the blue and black to Z and see if works, if so the trace to pin + on Z min is bad.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 05, 2015 12:29PM
I usually set my sensors this way:

Brown and blue goes to power supply, this way I know my sensor have enough power to give me maximum sensing distance. Then I connect the black signal wire to an LM7805 pin 1, pin 2 goes to ground and pin 3 (regulated 5 volts) goes to signal pin on endstop connector.

There is a risk that if the regulator fails, the whole 12 volts will go to the board frying it, but it is minimal since usually when the regulator fails they stop supplying voltage and also the power consumption it so small that the regulator never get stressed enough to make it fail.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 05, 2015 02:25PM
So i wired thing up like this video and use resistor like he use and it worked, the red led on the sensor also lighted brightly smiling smiley M119 open when it far from my bed and triggered when it near the bed, so i guess this problem is now solved? and can you link me to the sensor you using, that sensor sound nice cause it can react to any metarial.

And will there be any problem if the sensor is near enough to the heated bed? like the reading will be uncorrect or anything else that make the sensor do something wrong?
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 05, 2015 06:41PM
LJC18A3-B-Z/AX 6-36V DC Capacitance Proximity Sensor NC (about 9 bucks at Amazon)

They are heavy so if you want to use them have to be with bowden hotend or like me, print little slower.

You can search for lighter one, but those I had about 8 laying around so I used them.

No special nothing, same procedures as the one you use, they will detect the "upper" surface of the glass and not some metal under the glass at about 10 mm distance, then you just set the offset in marlin.

I don't like to use resistors as voltage dividers as you did because they are not reliable and if fail, your board will definitely get damaged. An LM7805 cost few more cents than a resistor but will be 1000 times more reliable an safer.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 05, 2015 06:49PM
I have tried different bed temperatures to check for any difference in distance readings, and the difference between a 70 degrees bed and a 110 degrees bed is so tiny that doesn't require adjustment.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 06, 2015 01:21AM
The reason i use resistor is cause i just follow the guide, im not good with electronic and cant even read schematic that why i just follow video or pictures that available online and english is not my 1st language,sometimes is hard to understand electronic language confused smiley

Is there any guide how to connect LM7805 with the sensor then to the ramps

now im worried about resistor is not reliable eye popping smiley are resistor always fail and how long the resistor life?

capacitive sensor cost more then inductive sensor, on aliexpress the ones i use cost around $2 and capacitive around $8
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 06, 2015 10:59AM
Well, they cost more because basically they are more sensitive :-)

LM7805 are quite simple: only 3 pins , 1Vcc 2Ground 3Out. You can use a 3 pin connector leftover from the printer to do the connections and because of close to nothing in consumption you don't need to use heatsink.

The resistor will last as long as the current doesn't exceed its tolerance. If you wanna keep the resistor setting, first find the consumption of the sensor and then use a resistor that can support doble of that, then use the ones with gold ring 1% instead of silver 5%.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 06, 2015 12:07PM
i didnt has multimeter, only the manual ones, after checking the current use by the sensor i think it around 3.3 - 3.5 like that. im using 10k ohm and 15k ohm resistor.

"You can use a 3 pin connector leftover from the printer"
where is this connector leftover? the z pin endstop connector?

is this LM7805 link
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 06, 2015 04:58PM
When I mentioned leftover connector I meant a 3 pin connector cable. Since I built my own printers, I usually have laying around 3 pin female connectors that I cut from an endstop switch, etc. You might not have one though, but if needed you can purchase them on ebay quite cheap.

You mentioned the resistor value, but not it's power nor it's tolerance. Is it a 1/8 watts, 1/4, 1/2? Its silver or gold ring?

If consumes 3.3 milliamps you are good with 1/8, to have an exact value of consumption look online for your sensor and check its specs.

Yes that's the regulator I use. Like I said before, you can add to the circuit anything you want to add protection but by itself is more than enough.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 06, 2015 05:03PM
Something like this:

[img1.banggood.com]
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 06, 2015 11:34PM
I already got the connector lying around here,

i dont know what keyword for search it but if this help, on the salespages from where i bought the resistor

1/4W carbon resistor 4color band 5% 15K ohm
1/4W carbon resistor 4color band 5% 10K ohm

so i think its 1/4 watts and it has a gold ring

my sensor output current is 300mA am im good with 1/4watts resistor setting?

Edited 1 time(s). Last edit at 03/07/2015 12:26AM by wendychai80.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 07, 2015 02:34AM
No, 1/4 watts is 250 milliamps, 1000 milliamps= 1 watt, so for 300 milliamps you need a 1/2 watts resistor = 500 milliamps, but since the usage of the sensor is so lilltle you might be fine. keep the sensor activated for few minutes and then touch the resistor with your hands, if hot then change the resistors to 1/2 watts if not then don't worry.

Now, the most important part of this is that the arduino board never gets more than 5 volts in the signal pin, if higher than 5 volts the regulator in the board might fail or the trace from the pin to the chip might burn. So if you don't have a voltmeter "A good one" then get one and test voltage between signal pin and ground and be absolutely sure your voltage is 5 volts.

If the resistors don't get hot and you have 5 or little less volts at the pin, then you can comfortably keep the settings you have already, if not then change resistors wattage and/or value before you damage the board.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 07, 2015 03:43AM
im keep the sensor active for 5 minutes and then touch the resistor, not hot or warm, so this is ok right?

im check voltage between signal and ground it read 3.4v
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 08, 2015 03:49AM
You are good then.

Enjoy the simplicity of Auto bed leveling smileys with beer
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 08, 2015 04:17AM
Thank you for guiding until the end friend smileys with beer maybe in the feature i want to use LM7805 to replace the resistor can you show me diagram or where to connect the LM7805
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 08, 2015 04:01PM
Glad you got it working.

This is the basic circuit for an LM7805, you don't need a board you just solder the components to the regulator pins or legs and cover with heat shrink tubing.


[www.alpharubicon.com]

Solder a red wire to pin 1 of the regulator a black to pin 2 and a (brown, green, blue, yellow, etc) to pin 3. Solder at same time both capacitors between pin 1 and 2 and between 3 and 2, use heat shrink tubing and cover regulator and capacitors legs and wire soldering.
Connect black to pin 2 of the female jumper connector and the (brown,blue, green, etc) to pin 3 Of the connector, this connector is for the ramps board Z min endstop, the red cable goes to + on the power supply.

It takes about 5 minutes to get it done and what I usually do is to wrap around the wires and the legs of the capacitors to the legs of the regulators, I slide the heat shrink tubing on the wires and once solder is hot, I solder as fast as possible without leaving and cold solder, slide the heat shrink tubing all the way up till I cover all the legs and using either the same solder or a cigarette lighter shrink and secure the tubing. You can bolt the regulator to any metallic surface for heat dissipation or like me just put in on the path of the fan.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
March 09, 2015 02:04AM
thank you once again i will bookmarked this pages for later reference
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
April 14, 2015 07:25AM
Hi there,

Nice info!!

I went through all the info about this on the web (that I could find)... I think i´m prety close, but something is missing. My sensor lights up the led when metal comes near, aluminnum bed is lighting up the sensor LED too...but... when I check with M199 command, it aways return OPEN. Any tips?

thank you so much.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
April 14, 2015 07:47AM
Do you already change the Z endstop setting inside marlin?

Edited 1 time(s). Last edit at 04/14/2015 07:50AM by wendychai80.
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
April 14, 2015 08:15AM
Yes, I did... but, maybe thats something that I did wrong. I will post here the marlin content as soon as I get back to my office.

thanks
Re: want to ask how to wiring inductive proximity sensor to ramps 1.4 board?
April 14, 2015 08:28AM
Can i know where do you plug the signal wire from the sensor to the ramps?

This is what i do to wired the sensor, and it work perfectly for me already.

black wire from the sensor will go to Z signal pin on ramps
blue and brown each go to 12v power

i still use the resistor setting like in the video above, there link for the video if you scrool up

my sensor is exactly the same model number like he use in the video.
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