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.
NANO RX OR LITE RX
What is the major difference between Nano receiver and Lite receiver?
Nano receiver (2.4G version) is the first and (so far) the only receiver with power amplifier (PA+LNA). It has 100mW telemetry output and better sensitivity when longer range. Lite receiver doesn’t have a PA/LNA on them, so its telemetry power is as what the RF chip SX1280 came with 17mW.
Beside, Nano receiver comes with normal external Dipole T antenna. Lite receiver has SMD ceramic antenna and in theory it is not so long range.
High recommend the Nano receiver if the space is enough. On 65-85mm whoop drones with limited space and need light weight, Lite receiver is a better choice.
TOWER ANTENNA OR FLAT ANTENNA
New lite receiver with a flat antenna features a 3mm extra-thin board and 0.53g lightweight, which requires less assembly space on drones with limited space. Besides, solid flat antenna without irregular parts can withstand crashes, making the receiver not so fragile.
|Flat Antenna V1.1
|About 600 meters
|About 600 meters
FLAT ANTENNA V1.0 & V1.1
- Weight: 0.47g (with SMD ceramic antenna)
- Size: 10mm*10mm
- Telemetry power: 17mW
- Frequency bands (Nano receiver 2.4G version): 2.4GHz ISM
- Input voltage: 5V
- Antenna: Integrated SMD ceramic antenna
Lite receiver 2.4G version diagram as shown below.
Lite receiver with flat antenna 2.4G version diagram as shown below.
KNOW MORE ABOUT EXPRESSLRS
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 offically major release V1.1.0 protocol and no Binding Phrase inlcuded. 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.
- 1 x BETAFPV ELRS Lite receiver
- 2 x Spare shrink tube
- 4 x 30awg silicon connection wires (1 black, 1 red, 1 white, 1 yellow)