I recently bought a Sparkfun Can-Bus Shield (https://www.sparkfun.com/products/13262) and tried the SparkFun_CAN_Demo from here but the program only prints "CAN-Bus Demo" and then does nothing even when I have it connected into my vehicle's OBD-II port and the key is turned to ON (I can't run the engine because I am in my garage). Any help will be appreciated.
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SPI pins are located on different pins in Arduino Mega. You have to wire it correctly with your shield. Some shields uses ICSP (6-pin header) for better compatibility but this one doesn't. See Arduino SPI Reference for more details (section: Connections) |
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