Improve your connectivity experience with our latest V2 USB UART Tool! Make upgrading your ELRS firmware easier with this simple and effective tool. The updated version has a USB-C interface and a new power button that enables effortless power switching with a single press. You no longer have to struggle to connect cables while holding down buttons. With our new streamlined design, powering up and preparing your RX for a firmware update is faster, easier, and more efficient than ever!
When upgrading your ELRS receivers, you have two options - Wi-Fi or Serial Port. Although Wi-Fi upgrading is user-friendly and requires no additional accessories, it can be unreliable due to an unstable network.
With the RadioMaster V2 ExpressLRS USB UART Flasher, you won't have to worry about making a wireless connection. This dongle is designed explicitly for ELRS receiver serial port upgrades, providing a reliable and easy solution for flashing or recovering receivers with a bad flash.
Features
The upgraded USB-C interface allows for effortless connection to your computer using a USB cable. It features a power button for one-touch control, so you can easily tap to power cycle your Rx. The programming mode is simple to enter and has multiple protective circuits, including overcurrent and reverse protection. You can choose between 3.3V and 5V output voltage; the device has standard 2.54mm pins. It also has an RM-CRSF JST-GH interface output for easy connectivity with compatible ER series receivers. Additionally, it comes with a spring-loaded pin socket for enhanced convenience and DuPont wires for easy testing.
Compatible Receivers
Using 2.54mm pin output and spring-loaded pin adapter or Test hook adapters:
- All RP SERIES ELRS RECEIVERS
**Using regular 2.54mm pin output (Servo plugs):
- 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 ELRS PWM Receiver
- ER6G & ER6GV ELRS PWM Receiver
**Please note that 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
- ER6 2.4GHz ELRS PWM Receiver
- ER8 2.4GHz ELRS PWM Receiver
- ER8G & ER8GV ELRS PWM Receiver
**Please note that the above receivers can be connected to the receiver's CRSF port using a 4-wire CRSF cable.
Firmware upgrade instructions
1. Connect the Serial Port Cable with the receiver
2. Connect to the computer with a USB extension cable, press the receiver's BOOT button, then press the POWER button on the serial tool
3. Follow the ELRS upgrade tool's instructions to complete the upgrade
Included in package
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
