Due to a design flaw, I may need to use a GPIO pin as the 3.3V supply for a sensor I am connecting to my Electron. Normally, I would obviously use the 3V3 pin for this but is there any downside to using any other GPIO pin set to HIGH as a voltage supply? The current draw should be well under 50mA (I…

Quick search of the forum turns up this: [image] Electron I/O max current Hardware Hi! The Electron is documented so well, but I can’t figure out what the max current on the different GPIO pins is. (maybe just me. found 25 mA for the Photon on the forums) I need it to fi…

what kind of sensor? The pins are PWM so the output will be noisy and could interfere with the readings. I tried using it with a thermistor (sub 1mA draw) so well below the 20 mA or so limit, and the particle device was fine with it, but my temperature readings were very inaccurate. Wound up just sw…

Can the gpio pins of the electron be used as 3.3V supplies if set to HIGH?

Hardware

picsil November 1, 2019, 6:52pm 2

Quick search of the forum turns up this:

Bottom line: stay under 25mA on the GPIO pins.

Topic		Replies	Views
Electron I/O max current Hardware	5	3492	August 10, 2016
Shorting a GPIO pin on Electron Hardware	9	941	July 2, 2018
Where Best Place To Draw Power From Hardware	2	868	March 13, 2018
50mA peak from digital pin on Electron General	2	1164	July 23, 2016
Is it Possible to Disable 3v3 pin in Electron Firmware? (please say yes) Firmware	13	3666	October 24, 2016

Can the gpio pins of the electron be used as 3.3V supplies if set to HIGH?

Related topics