The BetaFPV ExpressLRS (ELRS) Nano Receiver is a high-performance receiver designed for FPV enthusiasts seeking reliability and low latency in their flight control systems. Featuring ExpressLRS technology, this compact receiver offers an impressive range and fast data transmission, making it ideal for racing and freestyle drones. Its lightweight design ensures minimal impact on your drone's performance while delivering superior connectivity. The receiver supports multiple protocols and is compatible with various transmitters, providing flexibility for all your drone flying needs.
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 both speeds, latency, and range. This makes ExpressLRS one of the fastest RC links available while still offering long-range performance.
Frequency bands (Nano receiver 2.4G version): 2.4GHz ISM
Frequency bands (Nano receiver 915MHz/868MHz version): 915MHz FCC/868MHz EU
Input voltage: 5V
Antenna connector: IPEX MHF
Diagram
Nano receiver 2.4G version diagram as shown below.
Know more about the PA+LNA. todo
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.
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.
Note: Binding once and the receiver will store the binding information. Re-power and the connect successfully auto.
Great ELRS receiver! Quality built with very neat soldering. These also have 100mw telemetry for longer range
R
Raymond Reyna
BetaFPV elrs 915 nano reciever
These are great I have already bought over 5. There is a small learning curve, but once I figured out the wifi updating method I have had very good luck with these! Now I can get one bound and fully set up within 5 minutes or so!!
R
Rudy Ortiz
Betafpv Elrs nano rx
Bound and updated really easy. Now to test it out in the air. So far very impressed. Thanks for the fast shipping. NewBee Drone Rocks!!!
