BETAFPV LiteRadio 2 SE Radio Transmitter

BETAFPV Configurator Supported

Product Overview

The LiteRadio 2 SE is a radio controller designed primarily for RC models, including multicopters and airplanes. It offers an 8-channel radio experience.

8 channels in total.
USB Joystick support for most practice simulators.
Supports BETAFPV Configurator for updating, configuring, and tuning.
Optional 2021 popular ExpressLRS 2.4G protocol version.
Built-in 1000mAh battery with USB charging support.

Front Side of the Radio Transmitter

The front of the transmitter features:

Switch A, Switch B, Switch C, Switch D
LED Ring
Power Button
Throttle Joystick
Direction Joystick

Back Side of the Radio Transmitter

The back of the transmitter features:

SETUP Button
BIND Button
Audio Port
Type-C Port

1. Button Functions

There are three buttons on the remote control radio transmitter:

Power Button: Turns the radio transmitter off/on.
BIND Button: Enters binding mode after the radio transmitter is powered on.
SETUP Button: Enters joystick calibration mode after the radio transmitter is powered on.

2. Power On/Off

POWER ON: Long press the power button for 3 seconds until it beeps three times (do re mi), then release. The radio controller LED ring will flash red quickly, then remain blue.

POWER OFF: A long press of the power button will turn off the radio controller after three beeps (mi re do).

3. LED Indicator and Buzzer

The LED ring indicates the working status of the radio controller.

State of the LED Ring	Reason	Solution
Red light solid on	The throttle joystick or switches are not in the lowest position.	Lower throttle and switches to the lowest position. Turn to blue then.
Red light flashing quickly	The radio transmitter is binding.	Wait for completing binding.
Blue light flashing slowly	Battery reaches the low voltage limit.	Charge the transmitter.
Red light breathes slowly	On charging.
Green light breathes slowly	Charge complete.

The buzzer will alarm twice, indicating a low battery that needs to be re-charged.

4. Binding the Receiver

Follow these steps to enter binding status:

Power on the remote control radio transmitter and wait for its system to load completely. The LED ring should be solid blue.
Enter the receiver's binding mode and wait for it to bind with the radio.
Press the bind button on the back of the transmitter to enter binding status. The LED ring will be red and flash quickly.
The LED ring will change to solid blue 5 seconds later when the transmitter exits binding status. If binding is not successful, repeat the process.

5. Switching Protocol

Note: Protocol switching is only available for CC2500 version radio transmitters. ExpressLRS version or Bayang version are not supported.

The CC2500 version supports 4 different protocols: Frsky D16 FCC, Frsky D16 LBT, Frsky D8, and Futaba S-FHSS. The protocol is indicated by the flashing times of the red LED when powering on, before the buzzer alarms.

LED Status	Protocol Version
Flash once	Frsky D16 FCC (ACCST 1.X Version)
Flash twice	Frsky D16 LBT (ACCST 1.X Version)
Flash Three Times	Frsky D8
Flash Four Times	Futaba S-FHSS

To change protocols (Frsky FCC D16, Frsky D16 LBT, Frsky D8, or Futaba S-FHSS), follow these steps:

Power the radio transmitter off.
Press and hold the BIND button while powering the radio transmitter back on.
The flash times of the red LED before buzzer alarms will change according to the tables above.

Note: LiteRadio 2 SE only works with D16 ACCST 1.X Frsky protocol. If you use a Frsky receiver with D16 ACCST 2.X version or ACCESS version, binding will fail.

6. Charging

The remote control radio transmitter has a built-in 1000mAh battery. When the red light flashes twice and the buzzer alarms twice, it indicates that the radio transmitter is low on battery and needs to be re-charged. Below are the charging methods:

Turn off the radio transmitter.
Plug in the remote control radio transmitter with an adapter via USB cable (5V output adapter is allowed).
The LED ring breathes red while charging, and turns green when fully charged.

A textual description of the charging diagram shows a Type-C data cable connecting to the transmitter and a USB adapter with "Output 5V" labeled, connected to a power source.

The continuous working time for a full charge is about 8 hours.

7. HID Joystick

This is the safest and quickest method to get started using FPV simulators for beginners. The LiteRadio 2 SE remote control radio transmitter supports most FPV simulators on the market with comprehensive configuration.

A textual description of the diagram shows the LiteRadio 2 SE transmitter connected via a Type-C data cable to a laptop displaying "FPV Simulator".

Operation steps:

Turn off the radio transmitter.
Connect the transmitter to the computer via USB data cable. Wait for the LED ring to breathe red or green.
Install the driver from the PC automatically; a prompt box will pop up after successful installation. The remote control radio transmitter will then work normally.

A textual description of the pop-up window shows "Setting up a device" and "We're setting up 'BETAFPV JoyStick'." followed by "Bluetooth & other devices" and "Other devices" with "BETAFPV JoyStick" listed.

Users may need to manually install the driver if the PC does not install it automatically or installs it incorrectly.

Important: DO NOT power on the transmitter first and connect it to the PC. The USB port is invalid in this situation.

8. Joystick Calibration

Joystick data may offset after a period of use (if joysticks are hit physically). Recalibrate joysticks using the following steps:

After powering on, press the SETUP button on the back of the remote control radio transmitter. You will hear two "Bee Bee" sounds, and the red LED will flash quickly (two flashes each time), indicating the transmitter has entered calibration mode.
Move the throttle joystick and direction joystick to the middle position, press the SETUP button again. Wait until the buzzer beeps three "Bee Bee Bee" sounds, and the red LED flashes quickly (two flashes each time), indicating that joystick data has been acquired and entered into the boundary value calibration mode.
Toggle the joystick to move to the top, bottom, left, and right joystick boundaries respectively (do not press too hard; the joystick just needs to touch the boundary). Keep the position for 1-2 seconds. Then, press the SETUP button one more time. You will hear a long beeping sound (about 3 seconds) from the buzzer again, and the red LED light will stop flashing, indicating that the joystick calibration is completed.

9. BETAFPV Configurator

BETAFPV Configurator is a utility designed to simplify updating, configuring, and tuning the radio transmitter.

Download address: https://github.com/BETAFPV/BETAFPV_Configurator/releases

How to enter the radio transmitter configuration page:

Turn off the radio transmitter.
Connect the transmitter to the computer via USB data cable. Wait for the LED ring to breathe red or green.
Open the BETAFPV Configurator program on your computer and switch to the configurator page for the radio transmitter.
Click the "Connect Radio Controller" button on the top right of the page.

How to recognize if your radio transmitter supports the BETAFPV Configurator: Remove the cover on the back of the transmitter; there is a label that says "BETAFPV Configurator Supported".