[electronic diy kit] CH340 USB to TTL module upgrade Brush line line STC Downloader
1, on-board CH340 USB-RS232 interface converter chip
2, on-board power indicator
3, onboard USB male for easy connection to PC
4, the chip TTL pin is already leads to facilitate communication with the MCU
5, the working voltage: 5V
6, board size:18.2 (mm) x15 (mm)