Product name:2.4G CC2500 NRF24L01 A7105 CYRF693 4-in-1 Flysky Frsky Devo DSM2 Multiprotocol Transmitter TX Module With Antenna Description: The 4 in 1 wireless module integrate four RF chips (CC2500,NRF24L01,A7105,CYRF6936) into one single circuit board,with MCU baseplate,can support a variety of remote control protocols by identifying the PPM signal output of the remote control,such as Walkera DEVO,Spektrum DSM2,Flysky,Frsky,WLToys,Hubsan,Hisky,etc. It can control up to several hundreds airplanes (or receivers). This module can recognize the remote control PPM signal, then converted into the corresponding standard wireless remote control format,which means that in theory as long as the remote control is with analog functions, it can work. But this item didn't come with a housing,so you will need to solve the housing problem. This product includes the wireless module and the MCU baseplate. The wireless module is responsible for transmitting and receiving 2.4G wireless signals,the MCU baseplate is responsible for processing data and implementing remote control protocol,they should be used together. Specification: Item Name: 4 in 1 multi-protocol wireless module Weight: About 28g Size: 13*8*1cm Version: Flysky,Frsky,JR (optional) Note: The module version depends on your transmitter brand,if your transmitter brand is JR,then please choose JR version,the Flysky version is specially for Flysky TH9X transmitter,the other brands transmitter can choose Frsky. Pin Function: NumberNamePropertyDescription 1 VCC Power 3.3V Power supply 2 GND Power ground 3 PE1 input Amplifier and antenna switching signal. See the truth table 4 PE2 input Amplifier and antenna switching signal. See the truth table 5 CSN1 input A7105 chip select signal 6 CSN2 input CC2500 chip select signal 7 CSN3 input NRF24L01 chip select signal 8 CSN4 input CYRF6936 chip select signal 9 SCK input SPI clock signal 10 MOSIs input SPI input for slave device 11 MISO output SPI output for slave device 12 CYRF_RST input CYRF6936 Reset 16 RFO in/out RF signal input/output, connect to antenna others GND Power ground Truth table: status PE1 PE2 A7105 RF signal to antenna 0 0 CC2500 RF signal to antenna 0 1 NRF24L01 RF signal to antenna 1 0 CYRF6936 RF signal to antenna 1 1 Supported Protocols: - Flysky (Generation I protocol,based on A7105,tested) - Hubsan (Based on A7105,tested) - Frsky (Based on CC2500,tested) - Hisky (Based on24L01,tested) - V2x2 (Based on 24L01) - Dsm2 (Based on CYRF6936,tested) - Devo (Based on CYRF6936,tested) - YD717 (Based on 24L01 ) - KN (V977,Based on 24L01,tested) - SymaX (Based on 24L01) - SLT (Based on 24L01) - CX10 (Based on 24L01) - CG-023 - BAYANG - SIMAX5C Note: The above protocols are transplanted from open source projects based on the remote control Walkera DEVIATION,the the original author have tested almost the protocols,but he is not specially test for this 4 in 1 wireless module,the protocols our supplier