BetaFPV ELRS Nano Receiver 2.4GHz

Note: Now the firmware version of the Nano receiver and module manufactured by our company is ELRS 3.3.0.;
ELRS Innovative team has officially released version 1.0.0, based on the version, we have some updates:

• 2.4G Nano TX Module supports 500Hz refresh rate；
• Short press the button on the Nano module 3 times to get into the binding status.

We suggest our customers upgrade their modules and receivers’ ELRS version to 3.3.0. Significantly, the module and receiver have to be in the same ELRS version, otherwise, the frequency cannot match successfully.

Click to download the firmware of the ELRS Nano Receiver(V3.3.0 Version).

Diagram

Nano receiver 2.4G version diagram as shown below.

Know more about the PA+LNA. todo

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 Nano 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.

Nano receiver could enter binding status by power on/off three times.

• Plugin and unplug nano 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.

Specifications:

• Weight: 0.7g (receiver only)
• Size: 12mm*19mm
• Telemetry power: 20dbm
• Frequency bands (Nano receiver 2.4G version): 2.4GHz ISM
• FCC/868MHz EU
• Input voltage: 5V
• Antenna connector: IPEX MHF

Included:

• BETAFPV ELRS Nano receiver – 2.4GHz x1
• BETAFPV T antenna x1
• Spare shrink tube x2
• 30awg silicon connection wires (1 black, 1 red, 1 white, 1 yellow) x4
• 4 pin header x1
• Nano receiver user manual x1