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

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By urbanze
#69205 Unfortunately, I put the GPIO16 (D0 of nodemcu) in 8v.

The esp keeps running perfectly, including WiFi. However, the pin has died. When measuring the current of nodemcu, has ~ 200 / 300mA , even in Sleep. What can I do? Is there any way to "remove" the burned / internal short-circuit pin?

Remember, it still * works perfectly...
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By RFZ
#69207 Have you measured the voltage on the pin and the overall current in different modes of GPIO16? If it is internally shorted to Vcc or GND, you may be able to stop the excess current by setting the PIN as output to either HIGH or LOW... On the nodemcu GPIO16 is also conected to some circuitry on the board (a LED and resistors)... have you checkt that the these still work fine?
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By urbanze
#69242
RFZ wrote:Have you measured the voltage on the pin and the overall current in different modes of GPIO16? If it is internally shorted to Vcc or GND, you may be able to stop the excess current by setting the PIN as output to either HIGH or LOW... On the nodemcu GPIO16 is also conected to some circuitry on the board (a LED and resistors)... have you checkt that the these still work fine?


OUTPUT->
HIGH = ~1.3V
LOW = ~1.3V

Nodemcu still heating, but working perfectly :?