I have been trying to implement charlieplexing of 7-segment display, and lately banging my head to find out, why the leds that ought to be OFF were glowing (all-bit dimly).
Here is what I was surprised to find out View attachment 65568
I have been trying to implement charlieplexing of 7-segment display, and lately banging my head to find out, why the leds that ought to be OFF were glowing (all-bit dimly).
Here is what I was surprised to find out View attachment 65568
Opps! thanks erics. Internal Pull-ups were indeed the problem, and I went on creating a thread about I/O Pin anomaly.
I disabled it, and the LEDs work fine now.
Opps! thanks erics. Internal Pull-ups were indeed the problem, and I went on creating a thread about I/O Pin anomaly.
I disabled it, and the LEDs work fine now.