ALLNET FriendlyElec USB to TTL Serial Cable - Debug Console for Pi (Friendly_USB_TTL)

The ALLNET FriendlyElec USB to TTL Serial Cable is a dedicated debugging and console access tool for Raspberry Pi, Arduino, ESP32/ESP8266, STM32, and other microcontrollers. It converts USB 2.0 signals to TTL serial levels, allowing direct communication with embedded systems. The cable features a CH340G chipset, supports 3.3V/5V logic levels, and includes TXD/RXD LED indicators for data transmission monitoring.

Advantages

Reliable and cost-effective solution for serial debugging and firmware flashing. Auto-sensing voltage levels ensure compatibility with both 3.3V and 5V devices. Compact design with a 1-meter cable length provides flexibility in workspace setup. Overcurrent protection safeguards connected devices.

Suitable for

• Raspberry Pi serial console access
• Arduino programming and debugging
• ESP32/ESP8266 firmware flashing
• STM32 development and debugging
• General TTL serial communication with microcontrollers

Key specifications

• Interface: USB 2.0 to TTL Serial
• USB Connector: USB Type-A Male
• TTL Connector: 4-pin Female Dupont Header (VCC, GND, TXD, RXD)
• Chipset: WCH CH340G
• Logic Voltage: 3.3V / 5V (auto-sensing)
• Output Power: 5V DC via USB
• Baud Rate: 300 bps to 2 Mbps
• Cable Length: Approx. 1 meter
• LED Indicators: TXD, RXD
• Supported OS: Windows 7/8/10/11, macOS, Linux
• Colour: Black

Recommendations

For optimal performance, install the latest CH340 driver from the manufacturer's website. Ensure correct pinout connection (VCC, GND, TXD, RXD) to avoid damage. This cable is ideal for developers and hobbyists requiring a simple USB-to-TTL interface.