USB CP2102 RS232 TTL UART 3.3/5V converter programmer for TX/RX readout

USB CP2102 RS232 TTL UART 3.3/5V converter

The CP2102 converter module is a versatile communication interface, compatible with devices operating at 3.3V and 5V. It is an ideal solution for projects requiring serial communication. Based on the reliable CP2102 chip, the module features a USB A connector and signals routed to a pin header, including TX, RX, DTR, GND, and VCC. The converter works excellently for programming microcontrollers - ESP8266, ESP32, Arduino, and Raspberry Pi.

Key technical features

The device features a thoughtful design and ease of diagnostics. Three built-in LED indicators show activity in real time: data transmission, data reception, and module power. The voltage on the VCC pin is 5V, while the logic level of the RX, TX, and DTR signals is 3.3V.

Example applications

• Programming microcontrollers and WiFi modules (ESP8266, ESP32, Arduino)
• Serial communication with GPS and GSM modules
• Repair and configuration of network devices such as routers
• Service and firmware updates in set-top boxes
• Reading data from sensors and circuits requiring a UART interface

Benefits

• Hassle-free communication with 3.3V logic devices without risk of damage
• Quick diagnostics of operating status thanks to three built-in LED indicators
• Convenient connection to a computer via a standard USB A plug
• Broad compatibility with popular platforms - Arduino, Raspberry Pi
• Access to additional control signals via solder pads

Specifications

1. Chip: CP2102
2. Connector: USB A
3. Signals on pin header: TX, RX, DTR, 5V, GND, 3.3V
4. Solder pads: CTS, RTS, DSR, DCD, RST, RI, SUS, /SUS
5. Status indication: 3x LED
6. VCC pin voltage: 5V
7. Logic level of signals: RX, TX, DTR - 3.3V