The BETAFPV Nano receiver is based on the ExpressLRS project, an open-source RC link for RC applications. ExpressLRS aims to achieve the best possible link performance in speed, latency, and range. This makes ExpressLRS one of the fastest RC links available while offering long-range performance.

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VIDEO: BetaFPV ELRS 2.4GHz SuperD, Lite tower and Lite flat

• Can achieve approximately 600 meters under equal conditions
• Superior link performance in speed, latency, and range 
• Performs well in control, range, and stability
• Reliability

KNOW MORE ABOUT EXPRESS_LRS

ExpressLRS is an open-source RC link for RC applications. Anyone can find this project on GitHub or join the discussion in the Facebook Group.

ExpressLRS is based on Semtech LoRa SX127x or SX1280 hardware for RX and TX respectively. It aims to achieve the best possible link performance in speed, latency, and range. At 900 MHz, a maximum of 200 Hz packet rate is supported. At 2.4 GHz, a blistering 500 Hz is currently supported with a custom OpenTX build. This makes ExpressLRS one of the fastest RC links available while offering long-range performance.

More and more vendors are starting to support the ExpressLRS radio protocol in different parts, such as radio transmitters with ELRS in stock, drones with built-in ELRS receivers, and ELRS TX modules for JR bay, or Nano bay. The BETAFPV team participates in this project and provides a series of ExpressLRS components.

WHAT IS THE MAJOR DIFFERENCE BETWEEN NANO RECEIVER AND LITE RECEIVER

The Nano receiver (2.4G version) is the first and, so far, the only receiver with a power amplifier (PA+LNA). It has a 100mW telemetry output and better sensitivity for longer ranges. The Lite receiver doesn't have a PA/LNA, so its telemetry power is limited to what the RF chip SX1280 provides, which is 17mW.

Additionally, the Nano receiver comes with a normal external Dipole T antenna, while the Lite receiver has an SMD ceramic antenna, which theoretically offers less range.

We highly recommend the Nano receiver if space permits. However, for 65-85mm whoop drones with limited space and weight constraints, the Lite receiver is a better choice.

CONFIGURATION & BIND

ExpressLRS uses the Crossfire serial protocol (CRSF protocol) to communicate between the receiver and the flight controller board. Therefore, make sure your flight controller board supports the CRSF serial protocol. Next, we will use a flight controller with Betaflight firmware to demonstrate how to set up the CRSF protocol.

The connection between the ELRS Lite receiver and the FC board is shown below. Enable the corresponding UART (e.g., UART3 below) as a Serial Rx on the Betaflight Configurator "Ports" tab. On the "Configuration" tab, select "Serial-based receiver" in the "Receiver" panel, and choose "CRSF" as the protocol. Telemetry is optional here and will reduce your stick update rate due to those transmit slots used for telemetry.
The Lite receiver comes with the officially released major version V2.0.0 protocol and no Binding Phrase included. The Lite receiver can enter binding status by powering on/off three times.

To bind the Lite receiver:

1. Plug and unplug the Lite receiver three times.
2. Ensure the LED is quickly double-blinking, indicating the receiver is in bind mode.
3. Ensure the RF TX module or radio transmitter enters binding status, sending a binding pulse.
4. If the receiver's light is solid, it's bound.

• Frequency Bnads (Nano receiver 915MHz/868MHz version): 915MHz FCC/868 MHz EU
• Frequency bands (Nano receiver 2.4G version): 2.4GHz ISM
• Telemetry power: 20dbm (100mW, 2.4G Version) 
• Antenna connector: IPEX MHF
• Weight: 0.7g (receiver only)
• Size: 12mm*19mm
• Input voltage: 5V
• Gain: 3.3dBi

IMPORTANT NOTES

• We suggest our customers upgrade their modules and receivers' ELRS version to 3.3.0. Importantly, the module and receiver must be on the same ELRS version; otherwise, the frequencies cannot match successfully.

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• Click to download the firmware of the ELRS Nano Receiver (V3.3.0 Version)
• BETAFPV ELRS Nano receiver manual download

• 4x 30awg silicon connection wires (1 black, 1 red, 1 white, 1 yellow)
• 1x BETAFPV ELRS 2.4GHz Nano Receiver
• 1x Nano receiver user manual
• 1x BETAFPV T antenna
• 2x Spare shrink tube
• 1x pin header 1x4

LIGHTEST ELRS RX - BETAFPV ELRS LITE FLAT ANTENNA RX

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