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nodemcu / nodemcu-devkit-v1.0

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Nodemcu board could not handle 16v ? #34

Open mmaxus35 opened 5 years ago

mmaxus35 commented 5 years ago

I have bought a esp8266 nodemcu board, yet it is burned and smoked out when i connect 16v to Vin pin and GND to GND ? Diodes are burned as it is shown in the figure ?

I could not understand why ? Because diodes and AMS1117 has maximum power input rating as much as 18V ? nodemcu

MStylesMS commented 5 years ago

Most devkits have a max input voltage closer to 5v. A very few can handle up to 12v, but those get fairly warm. It’s the other components, mainly the voltage regulator, that limit it.

Mark Stevens

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On Aug 14, 2018, at 6:15 AM, mmaxus35 notifications@github.com<mailto:notifications@github.com> wrote:

I have bought a esp8266 nodemcu board, yet it is burned and smoked out when i connect 16v to Vin pin and GND to GND ? Diodes are burned as it is shown in the figure ?

I could not understand why ? Because diodes and AMS1117 has maximum power input rating as much as 18V ? [nodemcu]https://user-images.githubusercontent.com/22351514/44088620-82a4e3f8-9fcc-11e8-9770-547b4b206da5.jpg

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