Example: 50-OpenMV-Boards/53-N6-Boards/50-Board-Control/charge_pin.py
# 本作品采用MIT许可证授权。
# Copyright (c) 2013-2026 OpenMV LLC. All rights reserved.
# https://github.com/openmv/openmv/blob/master/LICENSE
#
# Charge Pin
#
# The charge pin is an internal Pin on your OpenMV Cam driven by the
# battery management IC. It is asserted low while the attached battery is
# being charged. The blue light reflects the pin state.
import machine
chg = machine.Pin("CHG", machine.Pin.IN)
b = machine.LED("LED_BLUE")
while True:
b.value(chg.value())