|
Arduino and cRIO serial connection
I've been working on using an arduino to control lights and maybe read sensors on our robot. I have decided to try to use serial instead of SPI or I2C because there isn't much documentation about the Arduino being the slave for either of them. I believe that the cRIO's serial port uses full voltage RS-232 serial and the arduino uses 5v TTL. I have found an old MAX232 based level converter board that I have laying around and I think that the cRIO will work with it. I know how to connect the Tx and Rx of the cRIO and Arduino, but I don't know if or what I have to do with the other pins. Do I only need ground, tx, and rx, or do I need to connect the others?
|