ESP8266 Community Forum

Hi all,
Once in a while, I observe that my device, based on ESP-07, stops responding. There's nothing on the serial port, it just stops. Sometimes on power up, sometimes after happily running for hours. When it happened again, I checked the state of all pins, and, to my great surprise, found that RST, which I pull up to Vcc via 10k resistor at all times, is LOW - that is something is pulling it down stronger than my pull-up. Struggling to understand how could that be possible. After I momentarily applied Vcc directly to RST, the thing kickstarted and was fine.

Try doing a continuity check between the other pins. I think the most likely one of concern would be D16.

But a lot of micro-controllers have the reset pin configurable as a port pin. Handling the reset function internally. If that is an possibility then if the poet values got screwed up, wrong mode, then maybe that could be a cause. But if that was the case, configured as a port pin, then it should not have caused a reset. Unless it was partially reconfigured.

Or something else.