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[Bug]: Heltec V3.1 says battery powered when connected to USB-C power #3389

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Calimerorulez opened this issue Mar 12, 2024 · 3 comments
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[Bug]: Heltec V3.1 says battery powered when connected to USB-C power #3389

Calimerorulez opened this issue Mar 12, 2024 · 3 comments
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hardware cantfix Hardware problem, can't be fixed

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@Calimerorulez
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Hardware

Heltec V3

Firmware Version

2.3.0

Description

Thank you for your continuing work in developing Meshtastic.

When having USB-C power connected to my Heltec V3.1, it shows the battery logo on screen, and the serial console debug shows:

DEBUG | ??:??:?? 61 [Power] Battery: usbPower=0, isCharging=0, batMv=3886, batPct=69

Relevant log output

DEBUG | ??:??:?? 61 [Power] Battery: usbPower=0, isCharging=0, batMv=3886, batPct=69
@Calimerorulez Calimerorulez added the bug Something isn't working label Mar 12, 2024
@caveman99 caveman99 added hardware cantfix Hardware problem, can't be fixed and removed bug Something isn't working labels Mar 12, 2024
@caveman99
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you need to calibrate your ADC. Not a bug. See https://meshtastic.org/docs/configuration/radio/power/#calibration-process-attribution

@Calimerorulez
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Calimerorulez commented Mar 12, 2024 •
edited

Thanks @caveman99 ,

Even thought I'm not using a battery?

@caveman99
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Yes because the end voltage of the battery also determines the usb display

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@caveman99 @Calimerorulez