IRangeX IRX4 LITE CC2500 NRF24L01+ A7105 CYRF6936 4 IN 1 Multiprotocol TX Module for Frsky X-lite Overview: This 4-in-1 TX module is suitable for FRSKY X-Lite. It integrates four RF chips (CC2500,NRF24L01+,A7105,CYRF6936) into one single circuit board, it supports a variety of remote control protocols, such as Futabas S-FHSS, Walkera DEVO, Spektrum DSM2, DSMX, Flysky, Frsky, WLToys, Hubsan, Hisky, Esky , Assan etc. You can control your model flexibility with it, and you will get much excellent experience with you favorite transmitter. This module is compatible with the Multi-module project on github. Its based on ARM microcontroller. All available protocols are included in serial mode. In this mode, it uses a serial protocol to communicate with your transmitter. The serial protocol does not require any hardware modifications, but you should update the firmware on your transmitter to the latest. Then the model protocol selection and binding is done from the Model Settings menu on your transmitter. For telemetry capable transmitters, the telemetry integration is done seamlessly with the transmitter firmware. Note: The STM32 MCU have change to ARM, fireware is ARM CORTEX-M The new stock will be ARM, Existing inventory is not affected Specification: Brand name: iRangeX Model: iRX4 Lite Operating voltage:5-9V Operating current: