📝 Overview
The CP2102 USB 2.0 to UART TTL Programmer Module is a compact USB-to-Serial converter based on the Silicon Labs CP2102 chipset. It enables reliable communication between a computer and TTL serial devices, making it ideal for programming and debugging ESP8266, ESP32, Arduino Pro Mini, STM32, and other microcontroller-based projects.
⚙️ Key Features
-
Based on the CP2102 USB-to-UART bridge IC
-
USB 2.0 Full-Speed compatible
-
Supports 3.3V and 5V TTL serial communication
-
Stable and high-speed data transfer
-
TX and RX status LEDs
-
Plug-and-play with Windows, Linux, and macOS
-
Compact and lightweight design
📦 Technical Specifications
|
| USB Interface | USB 2.0 Type-A |
| USB-to-Serial IC | CP2102 |
| Communication Interface | UART (TTL) |
| Logic Voltage | 3.3V / 5V TTL (module dependent) |
| USB Voltage | 5V |
| Baud Rate | Up to 1 Mbps |
| Operating System | Windows, Linux, macOS |
| Dimensions | Approx. 42 × 15 mm |
📌 Pin Configuration
|
| 3.3V | 3.3V Output |
| 5V | 5V Output (module dependent) |
| GND | Ground |
| TXD | UART Transmit |
| RXD | UART Receive |
| DTR | Auto Reset / Programming |
| RST | Reset (available on some versions) |
🛠️ Applications
-
Programming ESP8266 modules
-
Programming ESP32 boards
-
Arduino Pro Mini programming
-
STM32 serial communication
-
UART debugging
-
Firmware uploading
-
Embedded systems development
📚 Driver
Driver Required: Silicon Labs CP210x USB to UART Bridge VCP Driver (Windows may install it automatically).
