I am doing a school project where I need to use the adafruit 8×8 led matrix to monitor the sensors’ measurements. But I am having trouble getting it to work using the built-in library. I used Adafruit_GFX_RK and Adafruit_LEDBackpack_RK in the Photon library and wired the matrix to the Photon microcontroller as instructed. It showed the code has been compiled successfully but the led matrix won’t work. Any idea or suggestion is much appreciated.