Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)

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By martinayotte
#44087 Simply put a PullUp on RES pin if your module is a plain ESP (Wemos already has that pullup) and place a switch to GND.
Also, if you are using deepSleep(), your need to have GPIO16 attached to RES thru a 1K resistor like mentioned above.
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By Gawan
#47433 Hi,
my WeMos mini D1 is coming back from deep sleep if it is connected to PC-USB-Hub, but it does not come back if it is connected to external USB power supply.

Is that related to the resistor ??
I am using 1K

BR
Gawan