5pcs HW-728 CH340E MSOP10 USB to TTL Converter Module PRO MINI Downloader

>>>Manual: Click here to open connect single chip microcomputer P3.0 (RX) RXD end of USB downloader -> connect single chip microcomputer P3.1 (TX) GND end of USB downloader -> connect single chip GND 2) The development board or small system uses a separate power supply. After connecting the cable, it will be found that even if the development board switch is turned off, the power indicator of the development board will be lit (weak). This is a normal phenomenon, or download the STC according to the serial port. Series MCU method download (power supply needs to be cold start once). STM32 Microcontroller Download Mode: 1) Wiring is as follows: (only need to connect 3 wires) TXD terminal of USB downloader -> connect single chip microcomputer PA10 (RX1) RXD end of USB downloader -> connect single chip microcomputer PA9 (TX1) GND end of USB downloader -> connect single chip GND 2) The development board or small system is powered by a separate power source. Or use the USB downloader to provide 5V power supply. In the download, you need to connect boot0 to VCC. After the download is complete, connect it back to GND and press the reset button to complete the operation. Support win7 32-bit, 64-bit operating system, support win xp operating system Package Included: 5 x HW-728 CH340E MSOP10 USB to TTL Converter Module