BETAFPV Riciever ELRS : ELRS Nano T ELRS Receiver ELRS Micro PWM I ELRS Lite Tower

Item: BETAFPV ELRS Micro Receiver

Weight: 4.5g (with antenna)

Antenna: IPEX MHF + T antenna (recommend 80mm Dipole T Antenna)

PWM channel: 5 channels

Serial output protocol: PWM or CRSF

Size: 19mm*32mm*9mm (without antenna)

MCU: ESP8285/SX1280/SX1281

Telemetry power: 12.5dbm/17mW

Frequency bands: 2.4GHz ISM

Input voltage: 5V~9V DC @ "+" pad

Default firmware version: ExpressLRS v2.0

Adapted RC Model Type: Multirotors, Fixed-wing aircraft, Helicopters, RC Cars, RC Boats and etc.

Diagram

Below is the diagram for ELRS Micro receiver.

Note: The firmware version of the micro receiver manufactured by our company is ELRS 2.0.0. ELRS Innovative team has officially released version 2.0.0, which is not compatible with the 1.x version. Significantly, the TX module and receiver have to be in the same ELRS version, otherwise, the frequency cannot match successfully.

Note: The Micro receiver also supports flash CRSF output firmware, in this case CH2 corresponds to TX and CH3 corresponds to RX.

Please click here to know the way to flash firmware for Micro receiver.

Know More About ExpressLRS

ExpressLRS is an open-source RC link for RC applications. Everyone could find this project on Github or join the discussion in 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 both speeds, latency, and range. At 900 MHz a maximum of 200 Hz packet rate is supported. At 2.4 GHz a blistering 500Hz is currently supported with a custom OpenTX build. This makes ExpressLRS one of the fastest RC links available while still offering long-range performance.

More and more vendors start to support the ExpressLRS radio protocol in different parts, like radio transmitter with ELRS in stock, drone with built-in ELRS receiver, ELRS TX module for JR bay, or Nano bay. BETAFPV team take part in this project and provide a series of ExpressLRS components.

Binding Procedure

The Micro receiver comes with officially major release V2.0.0 protocol and has not been set for a Binding Phrase. So please make sure the RF TX module works on officially major release V2.0.0 protocol and no Binding Phrase has been set beforehand.

Enter binding mode by plugging in and unplugging the Micro receiver three times;

Make sure the LED is on double flashing, this indicates the Micro receiver is in bind mode;

Make sure the RF TX module or radio transmitter also enters the binding mode, which sends out a binding pulse;

When the LED light is solid, it indicates that the devices are successfully bound.

Note: once the devices have been successfully bound, the receiver will store the binding information. There would be no need for re-bind on the later use as the devices would be connected automatically.

Note: If you reflash the firmware of the Micro receiver with your own Binding Phrase, please make sure the RF TX module has the same Binding Phrase to perform an auto bind.

Note: Failsafe values are absolute and do not use the "invert" flag.

Micro receiver LED status indication is shown below.

Indicator status Meaning

Solid on Connected successfully

Double flashing Binding status

Flashing slowly Connection fail

Flashing quickly WIFI upgrade status

FAQ

Please click here to download the manual for ELRS Micro Receiver.

Recommend ExpressLRS Recovery Dongle for unbricking the receiver.

Package

1 * ELRS Micro Receiver

1 * BETAFPV 80mm T antenna