Hello everyone, I am looking to use a DFRobot E-Paper display (http://www.waveshare.com/wiki/4.3inch_e-Paper) with my Photon. It utilizes a standard Serial connection to communicate. I have added the library to Particle and created a project with all the demo files in it: https://go.particle.io/shared_apps/5992137b5bf713b3910018b0
The original library can be found here: https://github.com/Arduinolibrary/DFRobot_E_paper/raw/master/epd.zip
The library needed some modifications (change pinMode(wake_up, HIGH) to pinMode(wake_up, OUTPUT) and pinMode(reset, HIGH) to pinMode(reset, OUTPUT)) and I had to comment out the definition of the reset pin, which isn’t used anyways. Other than that I connected RX to TX and TX to RX, Wake Up to 2, and power to 3V and ground. This device is 3V compliant. The display refuses to show anything other than a blank screen, and it is tested and working on an Arduino Uno. Any help would be appreciated.