LiteRadio 3 Pro Radio Transmitter—An open-source radio remote control that supports the EdgeTX system. It comes with the hall gimbals, featuring four precision bearings, adjustable spring tension, and ergonomic stick ends for an unparalleled feel. The OLED display screen on the top of the transmitter brings visually instant data and a controlling interface to users. What's more, two optional internal RF systems and alternative external nano TX module make it a multi-protocol transmitter.
The default firmware of the LR3 Pro (ELRS 2.4G) has been ELRS V3 since Nov 2023 instead of the previous version, ELRS V2.0. If you want to upgrade your old radio transmitter, please check this guidance.
Literadio 3 Pro radio transmitter is greatly enhanced its internal ELRS module output power up to 250mW, which enables LiteRadio 3 Pro to excellently adapt its controlling range. Reserving a nano bay for an external TX module, it supports many popular modules in the market and meets all the protocols such as MULTI, CRSF, PPM, XJT, DSM2, R9M, etc. Besides, the OLED display screen and operating system are newly added to it for better usability.
| LiteRadio 3 Pro | LiteRadio 3 | LiteRadio 2 SE | |
| Gimbal Sensor | Hall | Potentiometer (Hall replaceable) | |
| RF Output Power |
50mW, 100mW, 250mW (ELRS) 100mW (CC2500) |
≤100mW |
≤100mW |
| RF System | CC2500 / SX1281 | CC2500 / SX1280 | CC2500 / SX1280 |
| Battery | 2000mAh 1S | 2000mAh 1S | 1000mAh 1S |
| External TX Module Protocol | MULTI, CRSF, PPM, XJT, DSM2, R9M, etc | CRSF | Not support |
| Display Screen | 1.3-inch | Not support | Not support |
| Operating System | EdgeTX | LiteRadio System | |
Note: When setting the ELRS version power to 500 mW, there might be a danger of packet loss at high temperatures. Please be careful using it.
LiteRadio 3 Pro Radio Transmitter—An open-source radio remote control that supports the EdgeTX system, which is an open-source firmware for RC radio transmitters. The firmware is highly configurable and brings much more features than traditional radios. Therefore, you can try your best to customize LiteRadio 3 Pro such as language, voice and etc with the EdgeTX system.
Note: Please click here to know more about EdgeTX operating system.
OLED display screen with two 5D buttons is newly added to LiteRadio 3 Pro radio transmitter. Users can adjust the TX settings such as switching internal/external modules, gimbal calibration and binding on the screen by controlling 5D buttons. Compared with LiteRadio 3, it is easier to adjust such settings and very friendly to a new player.
With EdgeTX operating system, flashing ExpressLRS internal TX modules is easier for everyone. First, there is no need to disassemble the case. Compared with upgrading by WIFI, it is more convenient, fast, and stable to flash ELRS internal TX firmware by using EdgeTX passthrough flashing.
Note: Please click here to know the upgrading steps. The passthrough is only used for ELRS 2.4G version. Currently, BETAFPV is actively communicating with the ExpressLRS official team on the latest ExpressLRS configurator to support flashing LiteRadio 3 Pro ELRS TX firmware.
Nano module bay enables the external TX module available. LiteRadio 3 Pro reaches a high level with its capability to support multi-brand external TX modules in the market for different protocols such as MULTI, CRSF, PPM, XJT, DSM2, and R9M, etc. BETAFPV ELRS Nano TX Module, which features a high refresh rate, ultra-low latency, and long-range, is strongly recommended for LiteRadio 3 Pro.
Note: If you are ready to install the TBS external nano module, the TBS nano module case size should be 64*42*25mm, the thicker one of the retrofit cases.
Features four precision bearings, adjustable spring tension, and ergonomic stick ends for an unparalleled feel. With an adjustable stick end, it perfectly fits thumbs and greatly improves the stick feel for the control. Hall Effect provides contactless sensing for not only accurate control inputs and precise centering but also durable use.
Top view
Front view
Back view
Below is the diagram of LiteRadio 3 Pro.
Radio transmitter settings and binding for ELRS 2.4G version are shown below. Please turn on Internal and External RF protocol at the same time when using the internal ELRS TX module. (With ExperssLRS 2.4G sticker on the Nano module bay.)
Radio transmitter settings and binding for CC2500 version are shown below. (With CC2500 sticker on the Nano module bay.)
Radio transmitter settings are shown below when installing and using the external TX module.
Note: Please do not move the joysticks too hard during the calibration process, otherwise, calibration accuracy will be affected. Please move the joysticks slightly during the calibration process.
WiFi upgrading for ELRS is shown below.
EdgeTX Passthrough flashing for ELRS.
Now ExpressLRS official firmware V2.5.0 is released and supports BETAFPV LiteRadio 3 Pro radio transmitter. You can download it for flashing.
Firmware: https://github.com/ExpressLRS/ExpressLRS/releases/tag/2.5.0
ExpressLRS Configurator: https://github.com/ExpressLRS/ExpressLRS-Configurator/releases/tag/v1.4.1
We highly recommend buying LiteRadio 3 Pro Radio Transmitter with the parts listed below.
