Frsky Rx Version
The Frsky version support both D8 & D16 protocol. The SPI Frsky Receiver is FCC version. So if you are EU-LBT firmware users and want to bind to the SPI Frsky Receiver, please read this article.
DSMX Rx Version
The DSMX version now comes with F4 Brushed FC (Native DSMX RX). It supports DSM2 and DSMX protocol both. Compatible with all of the DSM2 or DSMX model aircraft models remote control, such as JR, SPEKTRUM Horizon remote control.
If you occur the issue of short range, setting your radio transmitter to DSM2 will solve the problem.
Tip: If you are Spektrum DXe radio transmitter or OrangeRX RF module users and find that you can't bind successfully, please create a ticket to contact us.
For some Spektrum radio transmitter like DX6i/DX6e etc, the DSMX receiver may have a horrible range with your radio transmitter, please change the mode to DSM2 (DSMX in default). This issue is figured out by Micro Motor Warehouse.
Flysky Rx Version
The Flysky version is using the F3 Flysky FC.
The SPI Flysky receiver is compatible with almost ALL Flysky radios(e.g. FS-I6/FS-I6S) or Flysky compatible transmitter like Turnigy Evolution etc
SPI Flysky Receiver
This FC board has a build-in SPI Flysky receiver. You should choose the SPI RX support in the Betaflight GUI. In default, it support Flysky AFHDS 2A protocol. Below is the correct configuration in Betaflight GUI.
Note: the red receiver LED will turn off when in successful connection.
- Click the bind-button meanwhile powering on the board, either by connecting the battery or USB power. Then the receiver will enter bind mode, indicated by red receiver LED flashs quickly.
- Now, on the radio, enter the bind status(or what it takes to enter bind status). This receiver only support AFHDS 2A mode and does not support AFHDS mode, please turn on this mode in your radio transmitter before use.
- The red receiver LED should turn off when binding is completed and successful.
How to set up smart audio vtx control?
Multirotor Guide gives you the most straightforward explanation