Disable the charging LED on a Boron

[JohnDoeKyrgyz]

I am running my Boron off of a solar panel. The panel keeps the connected lipo charged. I am wondering if there is a software based method of disabling the charging LED. If there is not, is there any reason that I might not want to de-solder it?

[ninjatill]

Since the Boron and the Electron use the same PMIC, have a look at this post:

Disabling the Electron red charging LED when not using the LiPo

If you are in a situation where you have a power supply on VIN that can support 1800 mA and do so very quickly, it is possible to use the Electron without the LiPo battery. One use case for this high or low temperature environments, outside of the range of the LiPo. I think I discovered the settings you must make to disable the battery and charging completely. I had missed the watchdog before, and that would cause the charging light to start blinking at odd times, including when sleeping. Then …

[JohnDoeKyrgyz]

That post provides notes about turning off the entire PMIC. I am still using the LIPO. I just don’t want the charging LED. I was hoping that there was some way to control the charging LED similar to the way that you can control the system LED.

[rickkas7]

The charging LED cannot be controlled separately from charging. The LED is connected directly to the STAT output of the PMIC, and the bq24195 does not have any software setting that disables STAT.

[JohnDoeKyrgyz]

Thanks Rick. It looks like I’ll need to remove this LED from the board.