I have read quite a bit about needing a resistor when powering a 5mm LED from an esp32 GPIO pin, however, other experts say that if a LED is powered correctly, it won't need a resistor at all and won't burn out. 1. Is it as easy as purchasing a LED that is powered properly for an esp32 GPIO pin so t...

I have spent quite a bit of time troubleshooting this issue and I still am looking for suggestions. Here's what I have done: I replaced the switch with the another more reliable one. I have tried using a different GPIO port. I replaced the internal pullup with an external resistor pullup, and also t...

I have assigned an interrupt to a switch, and the code works perfectly, except every few days the interrupt code gets triggered when the switch has not been pressed. What could cause an interrupt to fire on it's own? I would think this might be hardware related, but it seems to be an issue on more t...

Thanks - can you share any links that might get me started in the right direction with this?

The tutorials I have found for storing and retrieving flash memory on the ESP32 only provide examples that presume you are not using flash for anything else. I am using autoconnect (hieromon.github.io/AutoConnect)... can someone explain and provide links to sample code where I can learn to store and...

Can anyone answer these questions about getting multiple esp32s to communicate directly using esp_now: - In order to get 2 ESP32s to communicate back and forth, does each ESP32 need to establish a session (esp_now_add_peer) with the other (A calls with B AND ALSO B calls with A), or if only one need...