Your Due code has all the Serial.println lines commented out. What line of code is generating the "0.00" on the Due serial monitor?
How long are the SPI wires between the two devices?
Draw a circuit diagram showing all the connections.
Your Due code has all the Serial.println lines commented out. What line of code is generating the "0.00" on the Due serial monitor?
How long are the SPI wires between the two devices?
Draw a circuit diagram showing all the connections.