Nelari wrote:
2) The ESP8266-01, powered by the regulator, does its thing and raises the TPL5111's DONE pin.
I don't have much measuring equipment, so I added a simple (RC) edge detector at the TPL5111's DONE pin. Judging from its behaviour, the ESP's GPIO1 pin goes HIGH immediately at power-on – even though there has not been time for the data-logging program to run, and there has been no digitalWrite to access the pin. The TPL5111 interprets this rising edge as the DONE signal, and turns off the ESP's power. So the ESP does get power, but loses it right away.
If this is what is going on, I would need a way to make sure the GPIO1 pin stays LOW during the ESP's power-on. Is there such a way?Statistics: Posted by Nelari — Wed Feb 07, 2018 11:37 pm
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