BetaFPV ELRS Nano Receiver

BETAFPV

$19.99 USD

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RF Version ELRS 2.4GHz ELRS 915MHz ELRS 868MHz

Cable Length 46mm 80mm 120mm

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Overview

BETAFPV ELRS Nano Receiver is based on the ExpressLRS project, an open-source RC link for RC applications. ExpressLRS aims to achieve strong link performance in speed, latency, and range, while using CRSF (Crossfire serial protocol) to communicate with a flight controller.

Key Features

ExpressLRS receiver with CRSF serial output protocol
Input voltage: 5V
Antenna connector: U.FL MHF (labeled IPEX MHF on the board diagram)
Receiver binding method: power on/off three times to enter bind mode (LED quick double blink indicates bind mode; solid light indicates bound)
Labeled onboard parts (diagram): LED, WiFi antenna, firmware upgrade button
Labeled pads (diagram): RX, TX, VCC, GND

Specifications

Weight	0.7 g (receiver only)
Size	12 mm * 19 mm
Input voltage	5 V
Antenna connector	U.FL MHF
Frequency bands (2.4G version)	2.4GHz ISM
Telemetry power (2.4G version)	20 dBm (100 mW)
Frequency bands (915MHz/868MHz version)	915MHz (FCC) / 868MHz (EU)

Receiver Series Comparison (BETAFPV ExpressLRS Receivers)

BETAFPV ExpressLRS receivers include ELRS Lite, Nano, Micro, and SuperD.

	SuperD RX	Micro RX	Nano RX	Lite RX
Weight	1.1 g (RX only)	3.5 g (RX only)	0.7 g (RX only)	0.46 g (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	100 mW	17 mW	100 mW	17 mW
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	Whoop Drone

Diagram Notes (Firmware & Binding)

Firmware note: the Nano receiver and module manufactured by BETAFPV is ELRS 3.3.0.
Suggestion: upgrade modules and receivers to ELRS 3.3.0; TX module and receiver must be on the same ELRS version to match successfully.
Note states: 2.4G Nano TX Module supports 500 Hz refresh rate.
Note states: short press the button on the Nano module 3 times to enter binding status.

Configuration & Bind

ExpressLRS uses the Crossfire serial protocol (CRSF) between the receiver and flight controller. Ensure the flight controller supports CRSF serial protocol, then enable the corresponding UART as a Serial RX in Betaflight, and set the receiver protocol to CRSF. Telemetry is optional and can reduce stick update rate due to transmit slots used for telemetry.

Wiring (as shown in the diagram): FC TX → RX, FC RX → TX, 5V → 5V, GND → GND
Bind steps: plug in and unplug (power cycle) the nano receiver three times; quick double blink LED indicates bind mode; solid light indicates bound
Note: binding once stores binding information for automatic reconnection after re-power

For support with setup, wiring, or firmware flashing, contact support@rcdrone.top or visit https://rcdrone.top/.