gomaomao/DIY-Multiprotocol-TX-Module
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DIY-Multiprotocol-TX-Module/docs/Module_BG_4-in-1.md
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#4-in-1 Banggood module Currently the form factor of this module is designed for the JR-style module bay. Many of the popular RC transmitters use the JR-style module bay: FrSky Taranis, FlySky Th9x, Turnigy 9X/R/Pro ##What you need

  1. The ready-made module is available from Banggood.com here
  2. A module case that fits your receiver like the one here

    or you can 3D print your own from a selection on Thingiverse (Example 1 Example 2).
  3. 3x2 header pins (to solder onto the board for programming)
  4. AVR ISP programmer like the popular USBASP programming dongle that is 3.3V safe - available from many sellers on ebay. There are reports that some of the cheap programmers are not safe to use with 3.3V units (like this unit). Look for USBAsp programmers with the “LC Technologies” label. Also, you will need a 10-pin to 6-pin connector to connect the USBASP to the board.

##Build instructions The assembly process is trivial but it does depend on:

  • The communication interface between your transmitter and the module, and
  • The version of the module you have

###Common steps

  1. Solder the 3x2 header pins onto the module as shown below {insert picture of module with pins}. These header pins are required to program the microcontroller.
  2. Fit the module into the module case. This may require some careful filing or sanding of the module to ensure a nice fit.

###PPM interface If you are only planning on using the PPM interface with transmitter you are ready to program the module as described in Compiling and Programming the module.

###Enabling Serial and Telemetry interface If you have a transmitter that can support serial communication with the board then you need to wire up the board appropriately. There are two versions of the module and the steps are slightly different.

Check which module you have and based on the pictures below. If you purchased the module after June 2016 then it is likely that you have V2 type module.

Version 2 (V2) type modules

Solder two bridges over the pads shown in the pictures below.

You are now ready to go over to Compiling and Programming.

Version 1 (V1) module

Solder bridges and resistors as illustrated in the picture below.

You are now ready to go over to Compiling and Programming.