The life of lithium batteries varies depending on the type. Theoretically, the average life of lithium batteries is more than 500 times. If we charge them once every three days, the theoretical life o
[i=s] This post was last edited by Rambo on 2019-5-14 14:23 [/i] [align=left][color=#000][font="][size=3]Complementary filtering principle: [/size][/font][/color][/align][align=left][color=#000][font=
I recently used a serial port screen. The voltage of the serial port screen is 5V, so the voltage of the serial port communication is also 5V. My main control is powered by 3.3V. I originally wanted t