Recent content by Mr. I need help

28X1 communication with schematic this is the schematic of one of my chips

the two chips can recieve a high command and output but cannot communicate with each other. First, I'll give you an overview of everything. I'm making an air hockey table for my year 12 VCE Systems Engineering. I have a scorebard with 4 seven segment displays, two on each side, showing the...

I have two PICAXE 28X1 microcontrollers and am having trouble getting them to communicate. Basically, one chip is sending a high from pin 15, portc4, to pin 3, porta1 of the other chip. both 28X1 chip are fully functional but neither of them transmit or recieve this high command. What is wrong...