BETAFPV ELRS Nano Rx
The BETAFPV Nano receiver is based on the ExpressLRS project, an open source RC link for RC applications. ExpressLRS aims to achieve the best possible link performance in terms of speed, latency and range. This makes ExpressLRS one of the fastest RC links available while still offering long range performance.
Specifications
- Weight: 0.7g (receiver only)
- Size: 12mm*19mm
- Telemetry power: 20dbm (100mW, 2.4G version)
- Frequency bands (2.4G Nano receiver version): 2.4GHz ISM
- Frequency bands (Nano receiver version 915MHz/868MHz): 915MHz FCC/868MHz EU
- Input voltage: 5V
- Antenna connector: IPEX MHF
Diagram
Schematic of 2.4G version of Nano receiver as shown below.
Schematic of 868MHz/915MHz nano receiver version as shown below.
Note: The firmware version of the Nano receiver and module produced by our company is ELRS 1.0.0-RC5 (the fifth test version before release);
ELRS Innovative team has officially released version 1.0.0. Based on the version, we have some updates:
- The 2.4G Nano TX module supports 500Hz refresh rate;
- Short press the button on the Nano module 3 times to enter the binding state.
We suggest our customers to update their modules and receivers ELRS version to 1.0.0. Importantly, the module and receiver must be in the same ELRS version, otherwise the frequency can not match properly.
Learn more about ExpressLRS
ExpressLRS is an open source RC binding for RC applications. Everyone could find this project on Github or join the discussion in Facebook Group .
ExpressLRS is based on Semtech Lora Hardware SX127x or SX1280 for RX and TX respectively. It aims to achieve the best possible link performance in both speed, latency and range. At 900MHz a maximum packet rate of 200Hz is supported. At 2.4GHz a whopping 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 suppliers are starting to support the ExpressLRS radio protocol in different parts, such as a radio transmitter with ELRS in stock, a drone with integrated ELRS receiver, ELRS TX module for JR housing or Nano housing. The BETAFPV team is taking part in this project and provides a series of ExpressLRS components.
Configuration and Electrical Diagram
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 demonstrate 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 Serial Rx in the "Ports" tab of Betaflight Configurator.
In the "Configuration" tab, select "Serial Receiver" in the "Receiver" panel and select "CRSF" as the protocol. Telemetry is optional here and will reduce the stick update rate due to the transmission slots used for telemetry.
The nano receiver could enter the binding state by turning on/off three times.
- Plug and unplug the nano receiver three times;
- Make sure the LED is double-blinking quickly, which indicates the receiver is in pairing mode;
- Make sure the RF TX module or radio transmitter enters the linking state, which sends out a linking pulse;
- If the receiver has a solid light, it is locked.
Note: Binding once and the receiver will memorize the binding information. Power on again and connect successfully automatically.
These TPU Foldable Mounts for the BETAFPV ExpressLRS 2.4G Receiver were designed by Ridwan Hughes to be reusable and easily printable. You can download the STL file on Thingiverse .
Package Included
- 1 * BETAFPV ELRS Nano Receiver
- 1 * BETAFPV T Antenna
- 2 * Replacement Heat Shrink Tube
- 4 x 30awg silicone jumper wires (1 black, 1 red, 1 white, 1 yellow)
- 1 * 1x4 pin header
- 1 * Nano Receiver User Manual
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You can return products that you are not satisfied with within 14 days of receiving your order. To be eligible for a return, the product must be in the same condition in which you received it, unworn or unused, with tags and in the original packaging. You must also have your receipt or proof of purchase.
Damaged or incorrect goods
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Exchanges
If you wish to exchange an item, the fastest way is to return it and place a new order for the new item.
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The lack of conformity exists when the product is not suitable for the use for which it is normally intended, does not conform to the description or does not possess the qualities promised by the seller, does not offer the qualities and performances usual for a good of the same type, is not suitable for the particular use desired by the consumer if brought to the attention of the seller at the time of purchase and accepted by the seller (art. 129 of the Consumer Code).
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| Receiver |
ELRS 868 MHz, ELRS 2.4G |
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