Spark Fun CAN Bus Read/Write Demo
Posted: Wed Jul 11, 2018 6:36 pm
Hi,
I have obtained two arduinos and two Spark Fun Can Bus Shields. I am attempting to use the CAN_Write_Demo on one and the CAN_Read_Demo on the other. I have connected CANH, CANL, and GND together through the header pins between the two arduinos.
I have used an oscilloscope to see an CAN signal coming off of the "write" arduino.
However, when I open the serial monitor for the port that is connected to the "read" arduino I am unable to see any incoming messages. Shouldn't these two example projects work as-is when loaded up and connected? I just don't understand why these example projects aren't talking to each other.
I am using a knock-off arduino board... the OSEPP-UNO-04 but I don't think that should change anything.
Any help is appreciated!
I have obtained two arduinos and two Spark Fun Can Bus Shields. I am attempting to use the CAN_Write_Demo on one and the CAN_Read_Demo on the other. I have connected CANH, CANL, and GND together through the header pins between the two arduinos.
I have used an oscilloscope to see an CAN signal coming off of the "write" arduino.
However, when I open the serial monitor for the port that is connected to the "read" arduino I am unable to see any incoming messages. Shouldn't these two example projects work as-is when loaded up and connected? I just don't understand why these example projects aren't talking to each other.
I am using a knock-off arduino board... the OSEPP-UNO-04 but I don't think that should change anything.
Any help is appreciated!