GEPRC ELRS Nano Receiver 915MHz (T Antenna)

19,90 €
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GEPRC ELRS Nano receiver is a new generation remote control system developed based on the ExpressLRS open source project. ExpressLRS sets new standartds for long-range connection, low latency and maximum refresh rate of 500Hz.

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Summary

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

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

 

Specifications

Size: 16.8mm*10mm

Weight: 0.6g(receiver only)

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

Input voltage:5V

Antenna connector: ipex1

 

Feature

1. Small size

2. 0.6g weight

3. WIFI Upgrade firmware

4. ELRS open source project, remote control

5.The operation is simple

 

Package Included

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

 

ELRS Nano Receiver Diagram

LED Status indication

Instructions

ELRS Nano receiver and FC connection diagram:

Open Betaflight Configurator, go to “Ports”tab and enable the corresponding UART as a Serial Rx (e.g. UART2 as shown below). Save and restart.

On the“Configuration”tab, click on“Serial-based receiver”on the“Receiver”panel, and select “CRSF

Binding

1. The receiver is powered on and off for three consecutive times (within an interval of 1 second);

2. Receiver’s LED doing double flashing, indicating that the receiver has entered the binding mode;

3. Make the RF Tx module or radio transmitter enter binding status. Once the LED status changes to solid light, the binding is successful.

 

FAQ

Q:Why GEPRC ELRS rx is always on and can not work when powered it up?


A:Recently, many users have reported that some F4 flight control Uart 2 ports are wired according to the crsf receiver in the manual, and the ELRS receiver is always on and can not work.

After data inquiry and test, it is determined that for the receiver with ESP chip, if the TX interface is placed at low Vil Mode,

This is not a bug in the firmware.

This problem is well known that some FCs cause the receiver TX line to go low at power on which forces the ESP into bootloader mode, hence the solid LED.

This is not a failure of the flight control or the receiver, but the ELRS project was not popular during the development of this part of the flight control models, and this problem was not optimized. The chips of ELRS and black sheep receiver are different, so the same crsf connection black sheep receiver can be used normally. The subsequent launch of flight control will solve this problem.

There are a couple of potential fixes/workarounds.

In addition, if there is a need for this part of flight control to use ELRS receiver, try the following methods:

1. Power on repeatedly for several times (low efficiency)

2. Remove some components on the flight control (high risk)

3. Add a pull-up resistor to port 2 (reply from the developer)
You can try is to add a small value (300ohm-1kohm) pull up resistor (to 3.3V) to the receiver TX line.

4. Change the version of flight control firmware (this problem occurs in some firmware of version 4.2)

5. ELRS receiver is connected to port 1, which can be used normally (Troubleshooting perfectly)

More details please check the link below:

https://github.com/ExpressLRS/ExpressLRS/issues/655

Q: Why can’t my remote controller be bound to the GEPRC ELRS 2.4G receiver?


A: The default firmware of our receiver is 2.0, if your remote controller is 3.0, it cannot be bound. If your remote controller is above 3.0 firmware, please use this GEPRC ELRS Nano 2.4G Firmware 3.0.zip

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