Waveshare PL2303 USB UART Board Communication USB to TTL USB to Serial Mini Module

Features:
Using PL2303TA (compatible with PL2303HXA) Support windows XP/7/8/8.1/10/... Support 3 power supply modes: 5V external power supply; 3.3V external power supply; external power supply (requires 3.3V-5V) With 3 LEDs: TXD LED, RXD LED, POWER LED
Instructions for use: (Take access to MCU as an example)
VCCIO: output 3.3V or 5V (module is powered by USB, jumper cap must be jumped to 3.3V or 5V) GND: Connect to GND TXD: Connect to MCU.RX (Signal flow direction: MCU.RX << PL2303 << PC.TX) RXD: Connect to MCU.TX (Signal flow direction: MCU.TX >> PL2303 >> PC.RX) Note: The module is from USB to TTL level, do not connect directly to RS232 level, otherwise the module will be burned.
Documents:

Package includes:
1 x?USB to Serial Mini Module