gomaomao/DIY-Multiprotocol-TX-Module
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pascallanger 2016-05-09 15:43:50 +02:00
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This module can be purchased [here](http://www.banggood.com/2_4G-CC2500-A7105-Flysky-Frsky-Devo-DSM2-Multiprotocol-TX-Module-With-Antenna-p-1048377.html). All the 4 RF modules are already implemented A7105, NRF24L01, CC2500 and CYRF6936. The board is also equiped with an antenna switcher which means only one antenna for all.
If you use this module and want to enable serial mode for er9x/ersky9x/Taranis/..., you have to do [this mod](http://static.rcgroups.net/forums/attachments/4/0/8/5/8/3/a8895038-170-4in1%20module.jpg).
To update the firmware of this module you have to solder a 6 pin header (top left) and use an USBASP like explained [below](https://github.com/pascallanger/DIY-Multiprotocol-TX-Module#upload-the-code-using-isp-in-system-programming).
If you want to enable serial mode for er9x/ersky9x/Taranis/..., you have to do [this mod](http://static.rcgroups.net/forums/attachments/4/0/8/5/8/3/a8895038-170-4in1%20module.jpg).
There are currently some hardware issues with the first version of this 4in1 module:
- A7105 RF is forced to PA mode which prevents telemetry to work. Hubsan is the only protocol using telemetry for battery voltage display.