RADIOMASTER BR1 Receiver User Manual

August 8, 2024
Radiomaster

RADIOMASTER BR1 Receiver

Specifications:

  • Frequency: 868MHz / 915MHz
  • Dimensions: 1813.83mm
  • Weight: 0.9g (without antenna)
  • Chipset: ESP8285 SX1276
  • Operating Frequency Range: 25Hz – 200Hz
  • Power Input: 5V
  • Antenna Connector: U.FL
  • Output Power: CRSF max. 500mw
  • Wireless Protocol: ExpressLRS v3.0

Product Usage Instructions

Configuration:

To configure the device, follow these steps:

  1. Set the Identifier to USB VCP
  2. Set Configuration/MSP to 115200 for UART1 and UART2
  3. In Betaflight Configurator, enable the corresponding UART as Serial RX (e.g., UART2)
  4. Save the settings and restart the device

Traditional Binding:

For traditional binding, follow these steps:

  1. Power OFF your transmitter/radio.
  2. Plug in and unplug your receiver three times.
  3. Ensure the LED blinks quickly twice, indicating bind mode.
  4. Power ON your transmitter/radio and press the [BIND] button on the ExpressLRS Lua script.
  5. If the receiver’s LED is solid, it indicates successful binding.

FAQ:

How can I update the firmware of the BR1 Receiver?
To update the firmware, visit the ELRS website at https://www.expresslrs.org/2.0/ for detailed instructions on firmware updates.

What do I do if my receiver is not binding properly?
If you encounter issues with binding, ensure that the Binding Phrase field is uncommented in Device options on the RX. Follow the traditional binding steps provided in the manual carefully for successful binding.

INSTRUCTION

SPECIFICATIONS

  • Type:  868MHz / 915MHz
  • Size:  1813.83mm
  • Weight:  0.9g (w/o antenna)
  • MCU:  ESP8285
  • RF Chip: SX1276
  • Refresh rate: 25Hz ~200Hz
  • Input Voltage: 5V
  • Antenna Connector: U.FL
  • Receiver protocol: CRSF
  • Telemetry Power: max. 500mw
  • Firmware (pre-installed): ExpressLRS v3.0

INCLUDES

  • 1x BR1 ELRS 900MHz Receiver
  • 1x 75mm U.FL 900MHz T/Y Antenna
  • 1x User Manual Card
  • 4x Silicone wires

DEFAULT FIRMWARE

RadioMaster BR1 900 RX
For more information, please visit the ELRS website: https://www.expresslrs.org/2.0/

CONFIGURATION

Open Betaflight Configurator, go to Ports tab and enable the corresponding UART as a Serial RX (e.g. UART2 as shown above)Save and Restart.

On the Configuration tab, click on Serial-based receiver on the Receiver panel, and select CRSF.

TRADITIONAL BINDING

Binding Phrase field must be uncommented in Device options on the RX.

  1. Power OFF your transmitter/radio.
  2. Plug in and unplug your receiver 3 times.
  3. Make sure the LED is doing a quick double blink, which indicates the receiver is in bind mode.
  4. Power ON your transmitter/radio and use the [BIND] button on the ExpressLRS Lua script, which sends out a binding pulse.
  5. If the receiver has a solid light, it’s bound!

References

Read User Manual Online (PDF format)

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Download This Manual (PDF format)

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