CRAMPS2.1
Release status: Experimental
Description | Cape-RAMPS for BeagleBone
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License | GPL
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Author | |
Contributors | |
Based-on | |
Categories | |
CAD Models | KiCAD
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External Link |
Contents
- 1 Summary
- 2 Safety
- 3 ECOs
- 4 Assembly
- 4.1 !!! WORK IN PROGRESS !!!
- 4.2 This document is currently a work in progress! Do not trust what you read here until this notice is removed!
- 4.3 Required Tools
- 4.4 Cape Assembly
- 4.4.1 Surface Mount Parts
- 4.4.1.1 100n 16V 0603 Capacitor
- 4.4.1.2 10u 6.3V 0603 Capacitor
- 4.4.1.3 100u 35V Electrolytic Capacitor
- 4.4.1.4 Miller Capacitors
- 4.4.1.5 SS14 40V 1A Schottky Diode
- 4.4.1.6 Green 0603 LED
- 4.4.1.7 Red 0603 LED
- 4.4.1.8 2N7002K FET
- 4.4.1.9 DMN2075U FET
- 4.4.1.10 220R 0603 Resistor
- 4.4.1.11 330R 0603 Resistor
- 4.4.1.12 2K0 1% 0603 Resistor
- 4.4.1.13 2K7 0603 Resistor
- 4.4.1.14 4k7 0603 Resistor
- 4.4.1.15 10k 0603 Resistor
- 4.4.1.16 100k 0603 Resistor
- 4.4.1.17 74CBTD3861
- 4.4.1.18 74ACT244
- 4.4.1.19 24C256
- 4.4.2 Through Hole Parts
- 4.4.2.1 FUSE-HOLDER
- 4.4.2.2 HEADER_2
- 4.4.2.3 HEADER_2X2
- 4.4.2.4 HEADER_3X2
- 4.4.2.5 KK-2.54-2W
- 4.4.2.6 KK-2.54-4W
- 4.4.2.7 BB_EXP_CONN
- 4.4.2.8 HEADER_4X2
- 4.4.2.9 SOCKET_6_LONG
- 4.4.2.10 HEADER_6
- 4.4.2.11 HEADER_6X2
- 4.4.2.12 PT_1,5-2-3,5-H
- 4.4.2.13 PT_1,5-3-3,5-H
- 4.4.2.14 PT_2,5-2-5,0-H
- 4.4.2.15 IRLB8743PBF FET
- 4.4.2.16 10A Fuse
- 4.4.2.17 15A Fuse
- 4.4.2.18 POLOLU_SOCKET
- 4.4.2.19 SHUNT
- 4.4.2.20 Pushbutton
- 4.4.2.21 Pololu
- 4.4.3 Complete
- 4.4.1 Surface Mount Parts
- 5 Setup and Testing
Summary
Version 2.1 of the CRAMPS board is a mixed surface-mount and through-hole design. The fine-pitch SMT parts from version 1.0 have been removed, so all parts are now large pitch or through-hole, and are relatively easy to hand solder.
For futher documentation, see: CRAMPS
Safety
The CRAMPS board is designed to handle power levels capable of causing a fire. Be very careful with the initial board checkout, ideally using a power supply protected from short circuit and overload. Never operate your board unattended, and make sure all connected parts subject to heating (including the wires and connectors!) are far away from any potentially combustible material. Always use the proper fuses, and insure your smoke detector is working properly.
ECOs
Not yet
Assembly
!!! WORK IN PROGRESS !!!
This document is currently a work in progress! Do not trust what you read here until this notice is removed!
Photos and assembly details will be completed once circuit boards arrive and have been tested.
Required Tools
- You must have
- Solder iron, solder wire, good tweezers
- You really need
- Solder wick, solder sucker, flux pen
- Optional methods use
- Solder paste, hot plate or oven
Cape Assembly
Soldering the CRAMPS board includes both surface mount and through hole soldering.
The surface mount can be done a few ways. To hand solder, start by putting a small amount of solder on one pad. If you have flux, coat the soldered pad. Use the tweezers to hold the component down in position and heat the solder to tack the component into place (make sure the entire solder blob flows so you don't get a cold solder joint). Then solder the other pads. Also popular is using solder paste for pad by pad soldering, Oven Reflow (need link), and HotplateReflowTechnique
Solder the SMT components first, starting with the fine pitch parts then working through the parts from shortest to tallest. Then solder the through-hole parts on top of the board. Finally solder the pin headers on the bottom of the board.
Surface Mount Parts
100n 16V 0603 Capacitor
- C301 C302 C501 C502 C503 C504 C505
- These can be placed in any orientation.
10u 6.3V 0603 Capacitor
- C506 C507 C508 C509
- These can be placed in any orientation.
100u 35V Electrolytic Capacitor
- C201 C202 C203 C204 C205 C206 C401
- These can be placed in any orientation.
Miller Capacitors
- C402 C403 C404 C405 C406 C407
- These parts are optional and are not populated by default.
- They may be used to slow down the FET turn on/off times if necessary to avoid dI/dt issues.
SS14 40V 1A Schottky Diode
- D401 D402 D403 D404 D405 D406
- These can be placed in any orientation.
Green 0603 LED
- LD101 LD102 LD301
- These can be placed in any orientation.
Red 0603 LED
- LD302 LD401 LD402 LD403 LD404 LD405 LD406
- These can be placed in any orientation.
2N7002K FET
- Q101 Q301 Q302 Q303 Q304
- These can be placed in any orientation.
DMN2075U FET
- Q404 Q406
- These can be placed in any orientation.
220R 0603 Resistor
- R305 R401 R403 R405 R407 R409 R411
- These can be placed in any orientation.
330R 0603 Resistor
- R101 R102 R303
- These can be placed in any orientation.
2K0 1% 0603 Resistor
- R511 R512 R513 R514
- These can be placed in any orientation.
2K7 0603 Resistor
- R302 R402 R404 R406 R408 R410 R412
- These can be placed in any orientation.
4k7 0603 Resistor
- R304 R306 R307 R314 R515 R516 R517 R518
- These can be placed in any orientation.
10k 0603 Resistor
- R301 R308 R309 R310 R311 R312 R313 R315 R316 R501 R502 R503 R504 R505 R506 R507 R508 R509 R510
- These can be placed in any orientation.
100k 0603 Resistor
- R201 R202 R203 R204 R205 R206
- These can be placed in any orientation.
74CBTD3861
- U501
- These can be placed in any orientation.
74ACT244
- U302
- These can be placed in any orientation.
24C256
- U301
- These can be placed in any orientation.
Through Hole Parts
FUSE-HOLDER
- FH201 FH401 FH402
- These can be placed in any orientation.
HEADER_2
- JP501 P102 P103 P301
- These can be placed in any orientation.
HEADER_2X2
- JP301
- These can be placed in any orientation.
HEADER_3X2
- JP201 JP202 JP203 JP204 JP205 JP206 P304
- These can be placed in any orientation.
KK-2.54-2W
- P302 P407 P409
- These can be placed in any orientation.
KK-2.54-4W
- P202 P203 P204 P205 P206 P207
- These can be placed in any orientation.
BB_EXP_CONN
- P8 P9
- These can be placed in any orientation.
HEADER_4X2
- P303 P503 P504
- These can be placed in any orientation.
SOCKET_6_LONG
- P101
- These can be placed in any orientation.
HEADER_6
- P305 P501
- These can be placed in any orientation.
HEADER_6X2
- P502
- These can be placed in any orientation.
PT_1,5-2-3,5-H
- P405 P406 P408
- These can be placed in any orientation.
PT_1,5-3-3,5-H
- P404
- These can be placed in any orientation.
PT_2,5-2-5,0-H
- P201 P401 P402 P403
- These can be placed in any orientation.
IRLB8743PBF FET
- Q401 Q402 Q403 Q405
- These can be placed in any orientation.
10A Fuse
- F201 F402
- These can be placed in any orientation.
15A Fuse
- F401
- These can be placed in any orientation.
POLOLU_SOCKET
- P208 P209 P210 P211
- These can be placed in any orientation.
SHUNT
- S201 S202 S203 S204 S205 S206 S207 S208 S209 S210 S211 S212 S213 S214 S215 S216 S217 S218 S301 S501
- These can be placed in any orientation.
Pushbutton
- SW101 SW102
- These can be placed in any orientation.
Pololu
- U201 U202 U203 U204 U205 U206
- These can be placed in any orientation.
Complete
Assembly is now complete, hopefully your board looks something like this one.
Setup and Testing
The EEPROM needs to be programmed with appropriate data, and the various features of the board need to be tested for proper functionality.
Currently, no programming or production test code is available, but there are plans to write some.
Stay tuned.