ELRS Nano Receiver User Manual

Product Introduction

The GEPRC ELRS Nano receiver is a new generation remote control system developed based on the ExpressLRS open-source project. ExpressLRS sets new standards for long-range connection, low latency, and a maximum refresh rate of 500Hz.

GEPRC ELRS Nano receivers are available in 915/868MHz and 2.4GHz versions, both featuring a maximum refresh rate of 500Hz. They can be used with GEPRC ELRS-series products or other ELRS-compatible devices.

Specifications

Size: 17mm * 11mm

Weight: 0.6g (receiver only)

Frequency band: 915MHz FCC / 868MHz EU / 2.4GHz ISM

Input voltage: 5V

Antenna connector: ipex1

LED Status Indication

Instructions

ELRS Nano Receiver and FC Connection Diagram

The diagram shows the connections between the ELRS Nano Receiver and a Flight Controller (FC). The receiver has pins labeled GND, 5V, TX, and RX. The FC also has corresponding pins labeled GND, 5V, RX, and TX. The connections are as follows:

• Receiver GND to FC GND
• Receiver 5V to FC 5V
• Receiver TX to FC RX
• Receiver RX to FC TX

Betaflight Configurator Setup:

1. Open Betaflight Configurator.

2. Navigate to the "Ports" tab.

3. Enable the corresponding UART as a "Serial Rx". For example, enable UART2 as shown in the configuration interface.

4. Save and restart the configurator.

The configuration interface shows three UART options: USB VCP, UART1, and UART2. For each, there is a toggle for Configuration/MSP and a Serial RX toggle. The example shows UART2 with Configuration/MSP set to 115200 and Serial RX enabled.

Receiver Configuration

On the "Configuration" tab within Betaflight Configurator, locate the "Receiver" panel. Select "Serial-based receiver" from the dropdown menu and then choose "CRSF" as the Receiver Mode.

Note: Remember to configure a Serial Port (via the Ports tab) and choose a Serial Receiver Provider when using the RX_SERIAL feature.

Binding

1. Power the receiver on and off three consecutive times, with an interval of approximately 1 second between each cycle.
2. The receiver's LED will flash twice rapidly, indicating that the receiver has entered binding mode.
3. Activate the binding status on your RF Tx module or radio transmitter. The binding is successful once the receiver's LED changes to a solid light.

About ELRS

The ExpressLRS project is constantly being updated. The contents of this manual may not reflect the very latest changes. For the most up-to-date information, please visit the official ExpressLRS Project resources.

GitHub Page: https://github.com/ExpressLRS/ExpressLRS

Product List

• 1 x Receiver
• 1 x T antenna
• 2 x Heat shrink tube
• 4 x Silicone cable (black, red, yellow, green)
• 1 x Pin (4pin)
• 1 x Instruction manual

Contact & Resources

Website: https://geprc.com/

Facebook: facebook.com/geprc

Instagram: instagram.com/geprc

Official Website: www.geprc.com

Manuals & Support: geprc.com/support

YouTube: [YouTube Channel Link - specific URL not provided in PDF]