ELRS Lite Receiver
BETAFPV Lite 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.
A ton of ExpressLRSÂ items are available now!
Nano RX or Lite RX
What is the major difference between Nano receiver and Lite receiver?
Nano receiver (2.4G version) is the first and (so far) the only receiver with power amplifier (PA+LNA). It has 100mW telemetry output and better sensitivity when longer range. Lite receiver doesn't have a PA/LNA on them, so its telemetry power is as what the RF chip SX1280 came with 17mW.
Beside, Nano receiver comes with normal external Dipole T antenna. Lite receiver has SMD ceramic antenna and in theory it is not so long range.
High recommend the Nano receiver if the space is enough. On 65-85mm whoop drones with limited space and need light weight, Lite receiver is a better choice.
Tower Antenna or Flat Antenna
New lite receiver with a flat antenna features a 3mm extra-thin board and 0.53g lightweight, which requires less assembly space on drones with limited space. Besides, solid flat antenna without irregular parts can withstand crashes, making the receiver not so fragile.
Whatever tower antenna or flat antenna, both versions perform well in control, range and stability, bringing a good flight experience to pilots. Below chart is the basic information for two antennas. It is shown that both antennas have almost the same performance in gain. However, the efficiency for flat antenna is better than tower antenna. In spite of that, tower antenna and flat antenna V1.1 can reach about 600 meters by equal conditions.
Tower Antenna | Flat Antenna V1.1 | |
Weight | 0.47g | 0.53g |
Size |
10mm*10mm*6mm | 11mm*10mm*3mm |
Gain | 3.3dBi | 3.2dBi |
Radio Efficiency | >70% | >80% |
Return Loss | <-7 | <-7 |
Recommend Drone | Whoop Drone | Whoop Drone |
Range | About 600 meters | About 600 meters |
Flat Antenna V1.0 & V1.1
The ELRS Lite Receiver flat antenna V1.1 is coming to see you again. Range issues and failsafe at around 100 meters have been resolved compared with V1.0. Now, the V1.1 flat antenna receiver can reach 600 meters with BETAFPV Moxon TX Antenna (using BETAFPV Nano TX module).
Previously, the flat antenna V1.0 led to the failsafe at around 100 meters with an RSSI of -95dBm of this receiver, which did not reach the expected range compared with the beta version. However, it works great for indoor whooping and racing.
For customers who bought this receiver before March 2022 and have issues with it, we will refund you or send you a new one that fixes range issues.
Please feel free to email support@betafpv.com and our support team will help you.
Specification
- Weight: 0.47g (with Tower SMD ceramic antenna), 0.53g (with Flat SMD ceramic antenna)
- Size: 10mm*10mm*6mm (Tower), 11mm*10mm*3mm (Flat)
- MCU: ESP8285
- Telemetry power:Â 17mW
- Frequency bands (Nano receiver 2.4G version): 2.4GHz ISM
- Input voltage: 5V
- Antenna: Integrated SMD ceramic antenna
Diagram
Lite receiver with tower antenna 2.4G version diagram as shown below.
Lite receiver with flat antenna 2.4G version diagram as shown below.
Note: For orders before April 2022, the firmware version of the Lite receiver tower antenna or flat antenna v1.1 manufactured by our company is ELRS 2.0.0; ELRS Innovative team has officially released version 2.4.0. If you want to flash ELRS official firmware, please download the latest ExpressLRS-Configurator or read our manual for flashing it. Significantly, the TX module and receiver have to be in the same ELRS version, otherwise, the frequency cannot match successfully.
Download the latest ExpressLRS-Configurator.
Manual for flashing ExpressLRS official firmware.
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 & BindÂ
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 Lite 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.
The Lite receiver comes with offically major release V2.0.0 protocol and no Binding Phrase inlcuded. Lite receiver could enter binding status by power on/off three times.
- Plugin and unplug Lite 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.
Note: If you reflash firmware of the receiver with your own Binding Phrase, please make sure the TX module has the same Binding Phrase. The RF TX module and the receiver will bind automatically in this situation.
FAQ
BETAFPV ELRS Nano receiver user manual download. (use the same manual of Nano Receiver).
Recommend ExpressLRS Recovery Dongle for unbricking the receiver.
Considering customers who fly tiny whoops indoors or with a short range, less than 100m, the Lite Receiver Flat Antenna V1.0 will be compatible with their needs. If you would like to fly drones with long-range, please choose Tower Antenna or V1.1 Flat Antenna.
Package
- 1 * BETAFPV ELRS Lite receiver (tower antenna or flat antenna V1.1)
- 2Â * Spare shrink tube
- 4 * 30awg silicon connection wires (1 black, 1 red, 1 white, 1 yellow)
or
Betafpv.com offers a (30) day manufacture defect warranty, starting from the date the product(s) was delivered to the customer. If more than 30 days have passed since receiving your purchase, unfortunately we can’t offer you a refund or exchange.
For merchandise was confirmed as genuinely defective(Product Design problem & Quality issues), we will ship out a replacement free of charge directly. The consumer will not be charged any fees for approved warranty service.
In almost all cases, we will work with you to debug your issue firstly.Â
Each claim should have all proof of defect by mean of photo or video showing clearly the defect of the product. Please create a ticket to send us photos or video of your product, a detailed description of your issue, and a description of what you have already done to fix it. We are happy to solve any problem you may meet.
NOTE: The refund amount is limited to the purchase price of the item.
Directly Send Ticket:Â Create a new ticket
*We do not accept ALL kinds of returns.
*All sales are final.
Affected by Covid-19, there will be some delay in the delivery.
Shipping Methods and Charges
- Standard Shipping
- Expedited Shipping (including DHL / FedEx / UPS. Can not ship batteries)
Note:
- Some remote address will be charged remote shipping fees according to the quotation of the logistics company.- FPV Goggles
- BETAFPVÂ Gates & Flags
- RTF FPV Whoop Kits
- LiteRadio Series radio transmitter
- Radio Transmitter & Drone Storage CasesÂ
For the strict Customs Policy, countries below are not available for delivering batteries. Therefore, if you fail to purchase from our site, hope can you understand that. We'll open selling once there is a reliable logistics channel.
-India (Both drones and batteries)
-Kuwait
Shipping Time:Â
Estimated Shipping Time:
- Expedited Shipping: 3-7Â working days
- Standard Shipping (Registered Mail):Â Â 12-30 working days
* These are estimated delivery times only, BETAFPV can not guarantee an exact delivery time.
*Â The estimated delivery time may be longer if any battery included in your order.
* Affected by Covid-19, there may be some delay in the delivery.Â
*Â We accept no responsibilities and liabilities for delay in shipping time as this is beyond our control.
* Any problem about shipping info of your order, please contact Customer Support.
Battery Shpping Issues
More Info requried
- Taiwan or Hongkong: please fill your address and name in Chinese.
- South Korea: please provide your personal clearance code. If you do not have it, please apply it from this website:
https://unipass.customs.go.kr/csp/index.do - Brazil: please provide your tax number (CPF) in your address.
- Chile: please provide your individual tax number in your address.
How To Track My Parcel
We provide trackable shipping service to most of the package. Please click here to reach detail information.
Wrong Address
Shipments will be sent to the address entered on our web page during checkout. We cannot be held responsible if the incorrect shipping address is entered by the customer during checkout. We can only modify a wrong address if customer contacts us before the package is marked as shipped.We cannot change shipping addresses after the order has been shipped, as the address information you enter is used as part of the fraud checks and fraud prevention. If additional fees are required to re-ship packages due to address errors, those fees may be passed on to the customer.
Damaged box or incorrect item(s)
If you receive damaged or incorrect item(s), contact Customer Support in 5 business days with receipt of your shipment to make the necessary corrections.Â
* All duties and taxes are the responsibility of the customer.Â
They responded to a replacement for a flat antenna problem on the ELRS Lite Receiver. Thanks!
I love the form factor....small fits almost anywhere
Love this small little receiver !
Works like a charm & easy to set up.
Flashing the firmware via WIFI is great & just following the instructions, easy to complete.
Works amazingly well with my Lite Radio 2 SE which I also converted to ELRS.
Using a bind-phrase on both devices makes binding easy-peasy ! [switch on & go!]
Love it !