ExtThermoCouple 1.0
Release status: Working
Description | External Thermocouple board
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Contents
Summary
If you need a third extruder on megatronics with thermocouple reading, or want improved temperature readings on RAMPS, you can use this board. It connects to any analog pin on the electronics and is supported by Marlin firmware.
Major features
- Compatible with RAMPS 1.4, Megatronics 1.0 and 2.0
- Easy to connect
Hooking up to Megatronics
Locate the Serial pins on the board (just below the stepper driver slots). Match the red wire with +, the black with - and the yellow with signal.
Hooking up to RAMPS
Locate the A-Out pins on the board in the aux-1 section. Match the red wire with +, the black with - and the yellow with signal.
Settings in Marlin
In configuration.h, select -1 as temperature sensor. For example:
#define TEMP_SENSOR_0 -1
In pins.h adjust the temp pin for you electronics to the analog pin (on both RAMPS and Megatronics pin 3, if connected through the examples above). For example:
#define TEMP_0_PIN 3
After uploading the firmware, you should have themocouple readings now.