This is how we'll get in Pro-tip: Use a wire tracer/tone generator to backtrace to other CAN Bus access points within your car. CAN-high and CAN-low are accessible through the OBD-II port under the steering wheel. Is it enough to hardwire them to unused digital pins or can I just declare them via software. The ECUs communicate with each other over a twisted wire pair holding CAN-high (CAN+) and CAN-low (CAN-). The wifi shield also has 3 other pins : en, cs, IRQ. I also understand that it needs RST pin for can bus shield and wifi shield but I don't know if its okay to solder together the RST pins of all shields. I know that except for the MISO,MOSI and SCK pins, my can bus shield only needs digital pin 10 for SS, and 2. I do not know exactly how to connect these devices without having pin conflicts (I will not be using the SD or joystick)Īdafruit WINC1500 Wifi Shield - Based on the id and data frame decoded I need to be able to access the information with a simple wifi connectionĪdafruit TFT 1'8 Shield - This will display the id and data of the can frame aswell as a few information Sparkfun CAN BUS shield - that would read the frames off the can bus and decode them into ids and data vectors that I would later use them. I am using Arduino Uno R3 with the following shields : I have a pretty good understanding of how that works and how to decode the messeges, however I am not sure of how can I build the project as it needs 3 shields. I am very new to arduino and I've been given a task to build a device using arduino, that can read data off the CAN(central area network) of a vehicle and then decode them.
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