RadioMaster ExpressLRS ELRS USB UART Flasher V2 for RP1 RP2 RP3 RP3-H RP4TD ER4 ER6G ER8G

Features

Upgraded USB-C interface
Power button for easy ON/OFF power cycling
Reverse polarity protection
Over-voltage protection 
Switchable power supply between 3.3V and 5V
Standard 2.54mm pins
RM-CRSF JST-GH port for simple plug-n-play connection with RadioMaster ER series receivers
Pin sockets included
Dupont cables for convenient testing

Compatible Receivers

Using 2.54mm pin output and spring-loaded pin adapter or Test hook adapters

Using regular 2.54mm pin output (Servo plugs)

Please note: The second channel is repurposed as a TX for the serial port tool’s RX port, while the third channel is repurposed as an RX connected to the serial port tool’s TX port.

Firmware upgraded by RM-CRSF interface output
 

Please note: The above receivers can be connected to the receiver’s CRSF port using a 4-wire CRSF cable.

Firmware upgrade instructions

Connect the Serial Port Cable with the receiver
Connect to the computer with a USB extension cable, press the receiver’s BOOT button, then press the POWER button on the serial tool
Follow the ELRS upgrade tool’s instructions to complete the upgrade

Size

Package 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