In KeithSDR Transceiver [Part 1]: Building the software Building the software][KeithSDR Transceiver [Part 1]: Building the software]] I have installed the Arduino IDE, Teensyduino and I have successfully compiled and upload the software of the KeithSDR receiver.

Next I am trying to test the display.

Testing the display

:PROPERTIES: nil:END: To test the display I decided to use a breadboard to connect the display SPI interface to the Teensy, following this schematic. Then, I connected the Teensy to the laptop and I inspect the debug messages in the serial monitor to see if the Teensy recognizes the display.