Custom TJC Serial Port Screen Debugging Kit USB to TTL Serial Port Module Power Board CP2102 Chip

1: Serial screen: For image display only, this link does not include a serial screen. Please purchase in the TJC category of the store;

2: Power board (USB to TTL): Serial port debugging module, our company recommends using this serial port tool to debug the screen:

3: 12V2A power supply: The external power supply of the power board (USB to TTL) is required for screens larger than or equal to 4.3 inches. Otherwise, the computer's USB power supply capacity is insufficient, which can cause abnormal screen operation such as black screen and flashing. The power board (USB to TTL) has a voltage regulator module that can convert 5V to the screen.

Introduction to USB to TTL serial port small board:

1. Using the CP2102 chip from SILABS company, the performance exceeds that of the domestically produced PL2303 and is close to FT232RL. The price of domestic goods, the quality of imports, and those who have used them all know.

2. Equipped with a 4PIN 2.54mm cable, it can be directly connected to the HMI serial port screen. Equipped with a USB cable, it can be directly connected to a PC.

3. The 5V power supply on the USB cable can directly power the serial screen (only screens smaller than 4.3 inches can be directly powered by USB). For screens larger than or equal to 4.3 inches, it is recommended to connect an external power supply, otherwise the computer's USB power supply capacity is insufficient and may cause abnormal screen operation.

4. USB power supply and external power supply can be connected simultaneously, and both power supplies are isolated using diodes (SS34) to prevent mutual backflow of current. You can use it with confidence and access it simultaneously.

This module is used in conjunction with our USART module and no other flashing instances are provided. Only those who understand and use it will buy. We only guarantee normal serial communication.

Pin connection method and instructions:

Before connecting, please make sure to find the pin definition, especially GND must not be connected to pins with voltage, and RX and TX terminals should not be connected to VCC pins. (Actual measurements have shown that some VCC pins have a voltage as high as 14V.)

If you make a mistake, you will burn the adapter chip. Please be careful not to use your own small board for experiments, otherwise we will not be responsible for burning it out. Be sure to find a good pin definition before connecting.

When using, please connect RXD to the target board TX, TXD to the target board RX, and GND to GND. If not, swap RX and TX.

All modules have undergone dual testing before leaving the factory! I would like to reiterate that those without electronic foundation should not buy!! Every module sold in our store has been personally tested and found to be in good condition by the store owner before being shipped, ensuring that it is in good condition. Buyers should not blindly connect it to the circuit after receiving the goods. They should first understand the wiring before operation. Module products are non refundable and non exchangeable once sold. Please be aware!!!

Connection method:

RX vs. TX; TX vs. RX; Ground to ground (GND to GND)

12V/2A power adapter introduction:

Purchase Notice:

The 5V power supply on the USB to TTL adapter board can directly supply power to serial screens smaller than 4.3 inches. For screens larger than or equal to 4.3 inches, it is recommended to connect an external power supply to the adapter board. Otherwise, the computer's USB power supply capacity is insufficient, which may cause abnormal screen flickering and flickering during operation.