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 onGithub or join the discussion in Facebook Group.
ExpressLRS is based onSemtech LoraSX127x 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.
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!!!
L
LL
BetaFPV 2.4 Nano RX
Stay away from this receiver until the WiFi works correctly with enough power. Mein got bricked.
when i received mine the box and everything was not damaged but when i opened it the canopy was cracked and the VTX did not work when i tried my first battery. I'm alright with the vtx being DOA as all i really wanted was the motors and beeeye camara, But when i reached out to customer service i was blamed for crashing it (even tho i never flew it). beware the QC is total garbage. save your money and buy a Mobula6 from a reputable company like GetFPV for RDQ's. I wasn't going to write a review but after the email i received i don't want anyone else getting scammed.
Darren excelled in selecting the development kit and essential accessories that would have to purchase separately, ensuring I made an informed purchase. His attention to detail and dedication prevented any post-purchase disappointment. I am thoroughly pleased and grateful for his exceptional service.
An absolute pleasure to fly. Handles incredibly well and responds to any input just as I expected.
The only criticism is not of the performance of the drone. Unfortunately, it arrived with damage to the canopy. But I was still able to fly it and make initial observations.
Update process is cumbersome, better if done with the VTX out of the quad. Also the update port is much flimsier than the earlier 2 antenna versions, IMO.