This item was bought for battery use with deep sleep purposes. For doing so in ESP8266 reset pin must be connected to Gnd pin in order to wake up. This board lacks a reset on- board pin. Since spec states it has a such capabilities - I wonder if someone has succeeded with putting it to sleep ( and wake it back on ).

PS - I know that on-chip gpio16 can be soldered to on-chip gnd - I'm hoping there is a more elegant, not soldering invloved, solution. Guy

  • 1
    So the board does not break out the reset pin. You can try to solder a wire to the reset button. But what is your actual question? Asking for a specific, cheap, bad documented one from aliexpress most likely will not lead to good results. The possibility, that someone else here used the exact same module, is very low. Also: Where does it state, that it has a broken out reset pin? I don't see anything like that on the site.
    – chrisl
    Commented Aug 3, 2020 at 21:52
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    Both GPIO16 and RST are available on ESP-WROOM-02 module, see espressif.com/sites/default/files/documentation/….
    – hcheung
    Commented Aug 4, 2020 at 15:06
  • @jsotola question is rephrased now.
    – guyd
    Commented Aug 4, 2020 at 20:25
  • @chrisl I hope question is clearer now. I tried to create such "soldering" as you suggested - but a awke up did not occur
    – guyd
    Commented Aug 4, 2020 at 20:29

1 Answer 1


This support page has the instructions for enabling deep sleep:

Support for WeMos D1 ESP-Wroom-02 Nodemcu

edit by Guy: in short, solder/connect pins as shown circled in red:

image of board

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