Parts/Radio & control/Transmitter parts & accessories/RadioMaster ExpressLRS (ELRS) USB UART Flasher V2 Programmer
RadioMaster ExpressLRS (ELRS) USB UART Flasher V2 Programmer
RadioMaster

RadioMaster ExpressLRS (ELRS) USB UART Flasher V2 Programmer

Part # RM-HP0157.USBUART-V2
Where to buy
$11.49
AMain Hobbies
Seen Oct 12, 2026
$11.49Buy
Prices are as last seen at the store; stock is not tracked.

About this part

ExpressLRS USB UART Flasher V2 Overview:

The RadioMaster ExpressLRS USB UART Flasher V2 is the ultimate tool for upgrading ELRS firmware with ease and reliability. Featuring a USB-C interface and a power button for seamless power cycling, this versatile flasher eliminates the complexities of firmware updates. Whether recovering from a bad flash or simply upgrading your receiver, this tool ensures a smooth and efficient process.

Designed specifically for ELRS receivers, the V2 flasher also offers compatibility with other devices requiring a UART interface, making it a must-have for firmware upgrades. Its switchable power supply between 3.3V and 5V, along with a variety of connection options, ensures adaptability to various needs.


Features:

  • Upgraded USB-C interface for faster and more convenient connections
  • Power button for effortless ON/OFF power cycling
  • Reverse polarity and over-voltage protection for enhanced safety
  • Switchable power supply between 3.3V and 5V
  • Standard 2.54mm pins for versatile connections
  • RM-CRSF JST-GH port for plug-and-play functionality with RadioMaster ER receivers
  • Includes pin sockets and Dupont cables for easy testing

Specifications:

  • Power Supply: Switchable between 3.3V and 5V
  • Interface: USB-C
  • Connection Types: 2.54mm pins, RM-CRSF JST-GH port
  • Protection: Reverse polarity and over-voltage
  • Compatibility: ELRS receivers and other UART devices
  • Applications: Firmware upgrades and serial port recovery

Includes:

  • (1) RadioMaster ExpressLRS USB UART Flasher V2
  • (1) Pogo Probe
  • (1) CRSF Wire
  • (1) 2.54mm Serial Port Cable - Type B
  • (1) Serial Port Test Hook - White
  • (1) Serial Port Test Hook - Green
  • (1) Serial Port Test Hook - Red
  • (1) Serial Port Test Hook - Black
  • (1) User Card

Compatible Receivers:

  • All RP Series ELRS Receivers
  • ER3C-i 2.4GHz ELRS PWM Receiver
  • ER5C-i 2.4GHz ELRS PWM Receiver
  • ER4 2.4GHz ELRS PWM Receiver
  • ER5A 2.4GHz PWM Receiver
  • ER5A V2 2.4GHz PWM Receiver
  • ER5C 2.4GHz PWM Receiver
  • ER5C V2 2.4GHz PWM Receiver
  • ER6G & ER6GV ELRS PWM Receiver
  • ER6 2.4GHz ELRS PWM Receiver
  • ER8 2.4GHz ELRS PWM Receiver
  • ER8G & ER8GV ELRS PWM Receiver

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