Does the PiicoDev LiPo Expansion Board for Raspberry Pi Pico have LV cut-off?

[James46717]

This is another way to check LiPo voltage.

LiPo Voltage detection circuit

Detecting LiPo voltage is not the best way to check charge level but it’s the easiest. I was using a PR2040-Zero (works like a Pico), all analog pins were in use. I wanted to indicate when the LiPo needed a charge so came up with this circuit using a LM393 voltage comparator. Due to the 10k & 100k feedback the trigger voltage is about 2.74V which is about 3.5V for the LiPo. The 3V3 reference voltage is generated by the RP2040. This circuit has worked through a few charge cycles now. Though…

Regards
Jim