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

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By icons
#59799 hello all,
does anyone know if it is safe to supply nodemcu model with 5v 20amps power supply? I read somewhere that the max is 1amp, or would the module just take the amps it needs and be ok? I have a 5v 20amps power supply for leds and would like to use the same power supply to power nodemcu without using usb or other power supply,

thanks for your enlightenment.

nodemcu current.png
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User avatar
By martinayotte
#59806 Not an issue there !
In electronics, it is like in real life :
- power supply can afford delivering 20 amps, but the nodemcu just wish to get about 1/2 amp, so it is ok !
- candies store can afford delivering tons of candies, but the child just wish to get 12 candies, so it is ok !
:D