Recently I have been bored and have been trying to figure out how to make an OBD1 to USB serial convertor. My design is based off this guy's right here I wired my Arduino like the picture I made.
I tried this code here
void setup() {
Serial.begin(9600); //I know what this does
}
byte rx_byte = 0; //No idea what this does really(Same for the rest of the code)
void loop() {
if (Serial.available())
rx_byte = Serial.read();
}
I was not able to receive any information from the port through the serial monitor, and if I am actually receiving information, how could I make sure the data gets to this software or any others?
P.S. I'm trying to read data from a 1994 Chevy Cavalier Z24 3.1L V6
P.P.S I know this may not be the right place to ask this kind of stuff