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8×8 led matrix won't light up on Photon
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8×8 led matrix won't light up on Photon

by huan1445 on Sat Nov 30, 2019 11:06 am

Hello all

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.

Best
Chunxu
Attachments
code.png
This is the library code on the Photon IDE.
code.png (154.21 KiB) Viewed 39 times
matrix.jpg
This is the led matrix and how I connected the wires.
matrix.jpg (235.51 KiB) Viewed 39 times

huan1445
 
Posts: 1
Joined: Sat Nov 30, 2019 10:52 am

Please be positive and constructive with your questions and comments.