BH1750 is a digital light intensity sensor, which uses I2C interface to work, so it saves GPIO port resources. Combining it with an OLED screen can form a small and convenient light intensity detectio
[i=s] This post was last edited by chenbingjy on 2017-10-18 16:48 [/i] Now I need to use STM32 to make a product with dual power supply. The battery does not work when there is AC power, and the batte