Become a Supplier Blog New Items

Total Price


Cart 0 Cart 0 Loading...

OrangeRX Open LRS 433MHz Transmitter 1W ( JR/Turnigy Compatible)

Generating Links

OrangeRX Open LRS 433MHz Transmitter 1W ( JR/Turnigy Compatible)


Now save save $16.74 $16.74

Special Price $16.75 $16.75

You save save $16.74 $16.74

Was  $33.49

Shipped From:
  • Global
Already Purchased Discontinued Product

Please continue searching for a similar product.
want FREE shipping? Click here to find out more!

The OrangeRX Open LRS TX Module is an open-source transmitter module that can be programmed to use your choice of protocol and any channel in the 400~460MHz range. It is a fully user-customizable RF transmitter system. It can even be programmed to utilize extra features such as telemetry when used with the OrangeRX OpenLRS Rx module.
The OrangeRX Open LRS TX Module is a very versatile unit perfect for your custom projects. 
It utilizes a 1000mW RF unit and Atmega328 processor with Arduino Bootloader allowing you to upload pre-written codes or write your own to suit your transmitter needs. 
The default code utilizes 3 channel frequency hopping. If you would like to use a different protocol, you can write your own hopping codes or simply download one of the many pre-written OpenLRS code sets already available. 
• 3.3v FTDI support for easy programming (DO NOT use 5V serial / AVRISP adapters)
• Serial Port for firmware upload and telemetry application
• I2C port for sensor applications (Wii Motion Plus-based Headtracker)
• 16Mhz Atmega328 processor with Arduino Pro Mini compatible bootloader.
• LM2937 3.3v voltage regulator
• U.F.L connector between PCB and antenna
• Buzzer for audible information 
• 1000mW output, frequency hopping capability, and hundreds of features

Compatibility: 5-pin JR compatible module-based transmitters
Frequency: 433MHz
Voltage input: 6.8~12VDC
IC: Atmega328P
Power: 1000mW
Range: Full range system


OrangeRx OpenLRS Tx Module (JR compatible)

*Note: The setup and use of Open LRS require computer programming skills and basic Arduino experience. This is not a "plug-and-play" system. See the attached document under the "Files" tab for resources on programming info, firmware downloads, and more.

*Note: Open LRS uses 3.3v FTDI support, DO NOT use a 5V serial / AVRISP adapter or damage will occur.

*Note: Please check with your local authorities regarding the operation of this equipment before you purchase it. Regulations on power output, usable frequencies, and licenses’ to operate vary from region to region.

*Note: This is not an original Arduino brand product.

Upload video

Only registered users can upload video. Please, log in or register

Sort by
Most Recent Topics
* Nickname:

* Your Reply:

Please, enter the text shown in the image into the field below
*Verification Code:
Post a new Topic
* Nickname:

* Your Topic:

Please, enter the text shown in the image into the field below
*Verification Code:
Post Topic

Only registered users can write reviews. Please, sign in or sign up

paolo | Verified Buyer

  • Overall
  • Quality
  • Value


Mar 09, 2021

tutto ok

Bordas | Verified Buyer

  • Overall
  • Quality
  • Value


Mar 19, 2020


Vanja ZD | Verified Buyer

  • Overall
  • Quality
  • Value

Excellent device

Feb 28, 2020

Fantastic device for DIY long range systems Open LRS or ULRS. Power is about 400 mW out of box but it can be easy step up to 1 or 2 Watts.

grabberr | Verified Buyer

  • Overall
  • Quality
  • Value

Inexpensive long range system!

Dec 31, 2019

These are a good price for a long range system. Module quality is good, but the included antenna is not very good. Make sure you read up on the mods these require to really work well, the tx voltage must be increased to get an actual 1W of power, but this is simple to do. I am using it with Ultimate LRS and it is working well so far.

NEVdD | Verified Buyer

  • Overall
  • Quality
  • Value

Customer Rated

Jun 08, 2016

This was the best emitter that could even be used as receiver using the Ultimate LRS software. Compatible with Ardupilot telemetry, it provides an awesome range.
Considering that you don't even need the hkpilot telemetry set when you use these, I can say the value for the price is amazing. Please HK we need restock! Check the ultimate LRS website to see the improvments that you should make to this module to get the best range possible.

| Verified Buyer

  • Overall
  • Quality
  • Value

Certified Buyer Rated

Dec 14, 2015

Best LRS option considering its price in the market so adviced.

RicardoS | Verified Buyer

  • Overall
  • Quality
  • Value

Certified Buyer Rated

Sep 05, 2015

good for mods with my apm. nice

joseph | Verified Buyer

  • Overall
  • Quality
  • Value

Customer Rated

Jul 14, 2015

these have crap range out of the box but all you need is to turn the stock antenna into a half wave whip all you need is a wire and antenna tube start at 350mm and slowly cut it back checking rrsi dont cut shorter than 310mm use a quarter wave on rx i left the rx in my house and walked half way across town without lossing signal i didnt go to the max range ill never fly that far away

illusive | Verified Buyer

  • Overall
  • Quality
  • Value

Customer Rated

Jun 21, 2015

WARNING! I bought 3 of these orange lrs modules and in ALL of them the ground plane on the pigtail was broken. If you are getting 200-300m range probably yours is broken too. And here is the real fun part: You probably burned the TX at this point(practically run the module without antenna)

I strongly recommend running a continuity test on the pigtail before ever turning the module on. Also if you have an soderin iron put dab of soder on SMA's pins. That was botced one of my modules too. Seriously messed up QC

Eurny666 | Verified Buyer

  • Overall
  • Quality
  • Value

Customer Rated

Jun 20, 2015

After a couple of months I have been trying to get my OpenLRS Orange RX 1W TX to work correctly. It's still not, at least not as good as you'd expect it to work.
No problem with the flashing process (OpenLRSNG) and binding, so far everything was fine. However, even with decent antennae (SR771 on TX and Sander on RX), the maximum range I could achieve was 1.8Km, beyond that the RX went into failsafe. Not even close to what you can get with FrSky system (I have achieved 2.5Kms easily).
I also had a defective pintail that was replaced by an SMA cable directly soldered onto the board. At full power, the transmitting power is ~420mW which is supposed to give ~50Km range with good antennae.
A friend of mine had the same setup and didn't manage to get it to work correctly having a range even worse than mine. We decided to go back to FrSky which works way beyond what you can expect of a 2.4G system.

  1. 1
  2. 2
  3. 3
Customer files
Conexión externa FTDI al receptor Download [3366]
how connect tx module to hk usb tool Download [2623]
Flash OrangeRX LRS FW and Taranis Download [1236]
this document helped me alote Download [164]
ULRS - Go for it Download [773]
better photo of pcb Download [4350]
No File Name Download [2054]
Upload your file

Only registered users can upload files.
Please log in or register to start helping your fellow hobbyists today!