[i=s]This post was last edited by kikiwu on 2019-3-26 18:06[/i] [align=center][size=5][color=#ff8c00][b]DIY Indoor Air Quality Monitor[/b][/color][/size][/align] [align=right][size=4][color=#ff8c00][b
After unpacking, JTAG and UART USB were both plugged into the USB port of the computer. The screen was not lit, but the LED was red. After installing the driver CP210x, the red light turned green. The
MR-J2S-20B is a 200W driver with a white shell and looks very beautiful.I disassembled a machine with a problem. When it was powered on, it reported an E9 error. According to the error code, there sho