I interfaced an ESP8266 with the switch matrix to do much less impressive things on more modern pins so I’m kindof blown away. It’s tricky piggybacking the sign

I interfaced an ESP8266 with the switch matrix to do much less impressive things on more modern pins so I’m kindof blown away. It’s tricky piggybacking the signal lines and I feel a little better hearing I wasn’t the only one who got it 99% working and started wondering if maybe my microcontroller was underpowered for the job.