Connecting Stratux with ICFly - TomBric/stratux-radar-display GitHub Wiki

ICFly_AHRSII is a nice heading and speed measurement system, that can be used to provide an EFIS together with flying apps like SkyMap or Skydemon. When you want to use ICFly together with a stratux you need to get the information from both devices onto the same WLAN network. This can be achieved since ICFly has a serial input (RS232) that is transferred to its Wifi interface.

Find below some short instructions how to achieve this:

Preparing Stratux to send NMEA via RS232

You need a serial converter that is able to convert to RS232. I recommend the following "CP2102 USB TTL UART RS232 RS485 all in one serial converter", e.g. here but also on many other sources.
- Configure this converter to provide RS232 output:
  DIP switch at 1-ON 2-Off and toggle switch up (set to "232")
Program the converter using "CP21xx Customization Utility", e.g. silabs:
- plugin the converter into your PC and start "CP21xx customization utility".
- Go to field "Product Description" and set the value field to "Stratux Serialout NMEA". Press "Program Device". Programming should be now done. You can recheck by plugging off and in the device again and checking the new value
- Plugin the converter to the USB connection of your stratux. In the stratux web interface (192.168.10.1) go to settings and check, whether it has detected the converter. It should show:
```
"SerialOutputs": {
    "/dev/serialout0": {
      "DeviceString": "/dev/serialout0",
      "Baud": 38400,
      "Capability": 1
    },
    "/dev/serialout_nmea0": {
      "DeviceString": "/dev/serialout_nmea0",
      "Baud": 38400,
      "Capability": 8
    }
  }
```
- the TX-LED on the converter should flash regularly . Your stratux is now ready and producing RS232 output.

Remark: This converter and procedure can also be used to provide a GPS source to ADSB-out capable transponders

Configuring ICfly_AHRSII

power on ICfly
connect to the "ICfly_AHRSII" wifi using wifi password "12345678"
in your browser go to 192.168.42.1 and configure Serial1 to 38400 Baud and "Read Data for WLAN"

Connecting converter and ICFly via serial interface

connect converter connection 232T to RX1 at ICFly (PIN 7)
connect converter connection GND to ICFly GND (PIN 4)

If you want to use ICFly output for Skydemon

select: 3rd party devices -> Flarm Devices -> Flarm with Air Connect and Air Connect Key 9999
when selecting "Flying" use "FLARM Device"