USB TO TTL CONVERTER Key benefits Enables reliable USB to TTL serial communication for programming, debugging, and data transfer with microcontrollers and embedded devices. Includes a transceiver communication indicator to quickly verify link status and data activity. Supports 3.3V and 5.5V TTL logic levels, providing broad compatibility with common development boards. Mini USB interface keeps the connection compact and easy to integrate into projects and test setups. Compact form factor designed for portable use and spaceconstrained applications. What makes it stand out Simple USB to TTL solution with a builtin status indicator for easy troubleshooting. Dual voltage support extends compatibility across 3.3V and 5V TTL boards. Two measured sizes ensure you can reference exact dimensions for fitment in your enclosure or project layout. Specifications and details USB interface: Mini USB TTL levels: 3.3V and 5.5V Module size: 4.30 x 1.75 x 1.20 cm Adapter module size: 36 x 17.5 mm Indicator: transceiver communication indicator Use scenarios Programming microcontroller boards such as Arduino Pro Mini or compatible boards that require TTL serial during firmware flashing and bootloader interactions. Serial debugging and console access for ESP8266/ESP32 and other modules that provide a USBtoTTL bridge for firmware updates and troubleshooting. Data acquisition or hobbyist projects where a PC or USB host needs a stable TTL serial connection to a microcontroller for logs, sensor data, or command/response communication. Compatibility and practicality Works with devices that require TTL serial communication at 3.3V or 5.5V logic levels and a Mini USB data/power connection. Suitable for development benches, test rigs, or field work where a compact USBtoTTL adapter is needed for quick connections to microcontrollers and modules.