BetaFPV ELRS Lite Receiver 2.4G Tower Antenna
BETAFPV Lite 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 both speeds, latency, and range.
BetaFPV ELRS Lite Receiver 2.4G Tower Antenna
BETAFPV Lite 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 both speeds, latency, and range. This makes ExpressLRS one of the fastest RC links available while still offering long-range performance.
- Weight: 0.47g (with Tower SMD ceramic antenna), 0.53g (with Flat SMD ceramic antenna)
- Size: 10mm*10mm*6mm (Tower), 11mm*10mm*3mm (Flat)
- MCU: ESP8285
- Telemetry power: 17mW
- Frequency bands (Nano receiver 2.4G version): 2.4GHz ISM
- Input voltage: 5V
- Antenna: Integrated SMD ceramic antenna
Note: The firmware version of the Lite receiver manufactured by our company is ELRS 1.1.0; ELRS Innovative team has officially released version 1.2.0, which is not compatible with the 1.1.0 version. We suggest our customers upgrade this receivers’ ELRS version to 1.2.0 if needed. Significantly, the TX module and receiver have to be in the same ELRS version, otherwise, the frequency cannot match successfully.
Lite receiver with tower antenna 2.4G version diagram as shown below.
Configuration & Bind
ExpressLRS uses the Crossfire serial protocol (AKA CRSF protocol) to communicate between the receiver and the flight controller board. So make sure your flight controller board supports the CRSF serial protocol. Next, we use the flight controller with Betaflight firmware to show 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 Betaflight Configurator “Ports” tab.
On the “Configuration” tab, select “Serial-based receiver” on the “Receiver” panel, and select “CRSF” as the protocol. Telemetry is optional here and will reduce your stick update rate due to those transmit slots being used for telemetry.
The Lite receiver comes with officially major release V1.1.0 protocol and no Binding Phrase included. Lite receiver could enter binding status by power on/off three times.
- Plugin and unplug Lite receiver three times;
- Make sure the LED is doing a quick double blink, which indicates the receiver is in bind mode;
- Make sure the RF TX module or radio transmitter enter binding status, which sends out a binding pulse;
- If the receiver has a solid light, it’s bound.
- Binding once and the receiver will store the binding information. Re-power and the connect successfully auto.
- If you reflash the firmware of the receiver with your own Binding Phrase, please make sure the TX module has the same Binding Phrase. The RF TX module and the receiver will bind automatically in this situation.
BETAFPV ELRS Nano receiver user manual download. (use the same manual of Nano Receiver).
- 1x ETAFPV ELRS Lite receiver (tower antenna or flat antenna)
- 2x Spare shrink tube
- 4x 30awg silicon connection wires (1 black, 1 red, 1 white, 1 yellow)
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