ESP32 C3 supermini - no wakeup from sleep

Recurrent H/W and software problems
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efalken
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ESP32 C3 supermini - no wakeup from sleep

Post by efalken »

I found this neat little board for under 3$.
image.png
It seems to have everything one could need for small projects as a perfect super-replacement for 8266.
Inbuild serial, onbord led, 3,3 or 5 V input, very small and enough pins.

Unfortunatly I cannot get it to wakeup from sleep with any rtc-pin.

My code works with a ESP32 devboard perfectly well.
Any ideas?
Regards and nice sunday
Erhard
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efalken
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Re: ESP32 C3 supermini - no wakeup from sleep

Post by efalken »

Solved:
Just soldered a wire to the reset button (see picture).
Pulling low will restart and load default programm (from config page).
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Re: ESP32 C3 supermini - no wakeup from sleep

Post by cicciocb »

I never tried the wakeup for the esp32-c3.

I'll check and fix it
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Re: ESP32 C3 supermini - no wakeup from sleep

Post by cicciocb »

I've fixed it in the version 1.53.6. Take note that the wake up works only for pins 0 to 5
efalken
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Re: ESP32 C3 supermini - no wakeup from sleep

Post by efalken »

You are so passionierte. Sent a beer.
Thankx!!!!
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Re: ESP32 C3 supermini - no wakeup from sleep

Post by Electroguard »

There is currently an Ali deal of 1,79€ for the ESP32 C3 SuperMini, and 1,79€ for a corresponding Development Board with LIPO charger.
Or if size isn't important, similar money can currently get an ESP32-S3 N16R8 [Local Link Removed for Guests]

c3deal.jpg
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efalken
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Re: wemos ESP32 lite on sale

Post by efalken »

Yeah, they throw out the former Weemos ESP32 lite for cheap 1,79.
here is a very helpfull description of the board:

https://mischianti.org/esp32-wemos-loli ... and-specs/

This board has a lipo charger included, which does not save you from draining the lipo to death.
So be carefull and measure the voltage over a voltage divider to pin 34,35 or any other.
One could solder (weld) an external controll board to the lipo to avoid the risk i.g.:

https://de.aliexpress.com/item/10050037 ... pt=glo2deu

That's probably the reason why weemos debrecated the board.
But its a fully blown esp32 with all capabilities and super stable - well worth buying.
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