ELRS Lite Receiver 2.4G (Flat Antena)
Building on the open-source ExpressLRS framework – renowned for delivering ultra-low latency, blistering speeds, and exceptional range – the upgraded Lite Receiver flat antenna V1.2 now features an extra-thin 3mm board, 0.46g ultra-lightweight design and enlarged soldering pads. Optimized impedance matching elevates signal reliability and sensitivity, enabling 300m range at 25mW transmitter power and up to 1000m at 50mW, pushing the boundaries of long-range potential in micro-sized receivers.
Specifications
- Weight: 0.46g (Flat Antenna V1.2),
- Size: 11mm*10mm*3mm (Flat),
- MCU: ESP8285
- Telemetry power: 17mW
- Frequency bands: 2.4GHz ISM
- Input voltage: 5V
- Antenna: Integrated SMD ceramic antenna
Diagram
Flat antenna 2.4G V1.2:
Selecting the right receiver is crucial for optimal quadcopter and RC model performance. BETAFPV's comprehensive ExpressLRS lineup - featuring the ELRS Lite, Nano, Micro, and our newest SuperD receivers - delivers tailored solutions to meet every pilot's FPV requirements.
| SuperD RX | Micro RX | Nano RX | Lite RX | |
| Weight | 1.1g (RX only) | 3.5g (RX only) | 0.7g (RX only) | 0.46g (Flat V1.2) |
| Antenna | U.FL + T antenna | U.FL + T antenna | U.FL + T antenna | SMD ceramic antenna |
| MCU | ESP32-PICO-D4, dual SX1280 | ESP8285 | ESP8285 | ESP8285 |
| RF Chip | Dual SX1280 + Dual PA | SX128X | SX1280 + PA, SX1276 + PA | SX128X |
| Frequency | 2.4GHz ISM | 2.4GHz ISM | 2.4GHz ISM, 915MHz (FCC), 868MHz (EU) | 2.4GHz ISM |
| Telemetry Power | 100mW | 17mW | 100mW | 17mW |
| Serial Output Protocol | CRSF | PWM or CRSF | CRSF | CRSF |
| Model Type | FPV Drone, Fixed-wing aircraft | Fixed-wing aircraft, Helicopter, RC Cars, RC Boats | FPV Drone | FPV Drone, Whoop Drone |
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 V3.0.0 protocol and no Binding Phrase inlcuded. Lite Receiver could enter binding status by power on/off three times.
- Plugin and unplug the 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.
Note: Binding once and the receiver will store the binding information. Re-power and the connect successfully auto.
Note: If you reflash 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.
File
BETAFPV ELRS Nano Receiver User Manual (Lite Receiver and Nano Receiver use the same manual)
Package
- 1 * BETAFPV ELRS Lite Receiver
- 2 * Spare shrink tube
- 4 * 30awg silicon connection wires
