XIAO Sense nRF52840 - A Guide on How to set Battery Charging current : 0mA vs 50mA vs 100mA (non-mbed)

[msfujino]

In my experiment, it charges at 100mA as shown in the link.
I believe pin22 is located under the can, but how did you verify it was LOW?

Charging characteristics of XIAO_nRF52840 and XIAO_ESP32C3

XIAO_nRF52840 and XIAO_ESP32C3 have a built-in charging function, but since the circuit diagram was not disclosed, I assumed that they have the same circuit. I was curious and measured the charging characteristics. They are completely different, XIAO_nRF52840’s charging current can be set to 50mA or 100mA by firmware, but XIAO_ESP32C3’s is fixed and very large at 370mA, so I need to be very careful when using small capacity batteries. [XIAO_Charge]