USB to TTL Serial Port Module Power Board, CP2102 Chip, Taoglas, Serial Port Screen Debugging Kit with 4pin Cable

USB to TTL Serial Port Module Power Board, CP2102 Chip, Taoglas, Serial Port Screen Debugging Kit with 4pin Cable Popis

1. Uses the CP2102 chip; its performance surpasses the PL2303 and rivals the FT232.
2. Comes with a 4-pin 2.54mm cable for direct connection to HMI serial screens, and a USB cable for direct connection to a PC.
3. The 5V power from the USB cable can directly power the serial screen (direct USB power is suitable only for screens smaller than 4.3 inches; for screens 4.3 inches or larger, an external power supply is recommended to avoid abnormal operation caused by insufficient USB power output).
4. Both USB power and external power can be connected simultaneously; isolation diodes (SS34) are used for both power paths to prevent back-feeding current, allowing for safe simultaneous use.

The 5V power supply the USB to TTL adapter board can directly the serial port screen less than 4.3 inches. For screens greater than or equal to 4.3 inches, it is recommended to connect an external power source to the board. Otherwise, the insufficient USB power supply from the computer will cause abnormal screen display, such as a distorted screen or flashing screen, during operation.
Pinout and Connection Instructions:
Before connecting, be sure to verify the pin definitions; in particular, do not connect the GND pin to any pin carrying voltage.
Also, ensure that the RX and TX pins are not connected to the VCC pin (actual measurements have shown that some VCC pins carry voltages as high as 14V).
Incorrect connections will inevitably fry the adapter's chip. Please exercise caution; do not use the module for trial-and-error experiments, as we accept no liability for damage caused by improper use. Always confirm the pinout before connecting.
During operation, connect RXD to the target board's TX pin and TXD to the target board's RX pin, and connect GND to GND. If it does not work, try swapping the RX and TX connections.
Color: As Sho