BradleyFord
commented
1 year ago If you look in the manual the 5v at the bottom is an alternative input.
The other 5v output is at the mmWave, but I know if it is enough to power the PM2.5 sensor as that could be sure hefty.
One idea for you is rather than powering your board via USB-C, do it with 5v so you can also use that for the extra sensor.
On Sun, Apr 16, 2023, 08:25 Allen Cronce @.***> wrote:
I'm interested in adding a PMSA003 dust sensor to my Everything Presence One. I realize that I'll have to extend the config to support this (I'm a developer, and experienced with ESPHome, so no problem there), and I'll need a custom case (got a 3D printer, so also no problem).
All I need to drive the AQI sensor is 5 volts and a single IO. But the breakout header only has 3.3v (plus ground and the spare IOs).
I assume that the 5v headers at the bottom of the board are inputs (when the jumper selects v5 direct instead of USB). Without examining the schematic I'm not sure if that header also provides 5v out when powered by USB (as I intend to do).
Perhaps it would be safer for me to tap the 5v on the microwave header that I'm not using (there are two of them)?
Thanks in advance for advice for tapping 5v.
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travi
I'm interested in adding a PMSA003 dust sensor to my Everything Presence One. I realize that I'll have to extend the config to support this (I'm a developer, and experienced with ESPHome, so no problem there), and I'll need a custom case (got a 3D printer, so also no problem).
All I need to drive the AQI sensor is 5 volts and a single IO. But the breakout header only has 3.3v (plus ground and the spare IOs).
I assume that the 5v headers at the bottom of the board are inputs (when the jumper selects v5 direct instead of USB). Without examining the schematic I'm not sure if that header also provides 5v out when powered by USB (as I intend to do).
Perhaps it would be safer for me to tap the 5v on the microwave header that I'm not using (there are two of them)?
Thanks in advance for advice for tapping 5v.