Konwerter USB UART TTL CH340G 3V3 5V USB-A programator do Arduino ESP32

USB UART TTL Converter with CH340G 3.3V 5V USB-A

Professional USB to UART converter (Universal Asynchronous Receiver-Transmitter) enabling bidirectional data transmission between a computer with a USB-A port and devices equipped with a serial interface. The module is based on the popular and reliable CH340G chip. The device emulates a virtual COM port in the operating system, allowing easy communication with microcontrollers.

The module is fully compatible with popular development platforms. It works perfectly as a programmer for ESP8266, ESP32, Arduino, and Raspberry Pi.

Key technical features

• Control chip: CH340G
• Communication interface: UART
• Logic level voltage: 3.3V and 5V - selectable via a jumper
• Computer connector: standard USB-A plug
• Status indication: built-in LEDs (power, TX transmit, RX receive)
• Additional pins: RTS (Request to Send) and CTS (Clear to Send)
• Module dimensions: 59 mm x 24 mm

Example applications

• Programming microcontrollers without a built-in USB interface (e.g. for Arduino Pro Mini)
• Uploading firmware to WiFi modules (for ESP8266, for ESP32)
• Serial communication with single-board computers (for Raspberry Pi)
• Diagnostics of network devices (routers, switches) via the console port
• Reading data from sensors and modules equipped with a UART interface
• Creating custom diagnostic interfaces in electronic projects

Benefits of using the module

• Voltage versatility - ability to work with 3.3V and 5V circuits thanks to the built-in jumper
• Visual operation monitoring - LEDs indicate power and ongoing data transmission
• Full flow control - exposed RTS and CTS pins enable hardware transmission control
• Complete kit - the package includes the necessary jumper and 4 connection wires (female-female)
• Easy installation - the module requires only the standard ch341ser driver (recommended for Windows systems)