The JP4IN1 integrates the CC2500, NRF24L01, A7105 and CYRF6936 RF chips into one PCB. The JP4IN1 is an OpenTX original accessory which can do serial digital signal communication with the Frsky series radios. Recognizing PPM signal from radio output, then converted to the corresponding radio protocol to achieve control of the fixed wing and drone aircraft. Supported protocols such as Walkera DEVO, Spektrum DSM2/DSMX, Flysky, Esky, Frsky, WLtoys, Hubsan, Hisky, Futaba SFHSS Assan etc are built in.
The JP4IN1 module offers greater flexibility with the ability to control most protocols and popular brands in the market today. It also gives the user the ability to use there own radio for more precise control and a better flying experience than the small radios often included with ready to fly products.
| Manufacturer | RF Chip | Examples of Compatible Protocols |
| Cyprus Semiconductor | CYR6936 | DSM/DSMX |
| Walkera Devo | ||
| J6Pro | ||
| Texas Instruments | CC2500 | FrSky |
| Futaba SFHSS | ||
| Amiccom | A7105 | FlySky |
| FlySky AFHDS2A | ||
| Hubsan | ||
| Nordic Semiconductor | NRF24L01 | HiSky |
| Syma | ||
| ASSAN | ||
| and most other Chinese models |
A full list of compatible protocols can be found in the Jumper JP4IN1 Manual under the files tab on this web page.
Note: due to the copyright of the protocol, JP4IN1 only provides hardware, please refer to the following link to download the firmware:
https://github.com/pascallanger/DIY-Multiprotocol-TX-Module
Specs:
Weight: 42g (include antenna)
Dimension: 64*49*23mm (exclude antenna)
Shell shape compatible with: Frsky, JR radio etc. MCU: STM32F103CBT6 (128K ROM, 20K RAM)
Working voltage: 4.5-7.0v
Working current: <=100mA
Working frequency: 2.4G ISM band
RF power: +22dBm
Firmware update: Yes, via USB
Supported Protocol List:
More details, please refer to::
https://github.com/pascallanger/DIY-Multiprotocol-TX-Module
