b. FY30A stabilizer and remzibiOSD

FY30A flight stabilizer and remzibiOSD is possible to cooprate .

FY30A providing AH pitch and roll data at TX UART line using $FYZT,,,,,,, protocol .

Update is 4Hz but in new firmware for FY30A , device provide 10Hz update - not bad.

Using this data at TX line we can add AH to OSD .

Because FY30A have not use GPS so we use OSD the same way as for MultiWii device , we made small mod of OSD adding software RX line.

We use T1 pad on OSD board and any free I/O input pin (I3, I4 or I5) .

There we connect TX line of FY30A and OSD will receive at software RX, AH data at baudrate 19200 in $FYZT,,,,,,, frame format of data.

- GPS is normally connected to hardware UART port of OSD .

So OSD's harware mod is only one small cable as on picture here

Now program firmware placed below of this web page to OSD and connect cable between OSD's software RX and hardware TX on FY30 - TX line . If FY30A and remzibiOSD are powered from two separate power sources , so we must be sure that GND of both devices is also connected (or GND of those two battery are connected) .

All firmware was tested remotly by friend of mine JasQ ,

movie how it works - firmware in FY30A is 4Hz update , but apparently exist new one updating 10Hz - so AH should work much more smoothly

Software version 1.01

And at once next version 1_52 - optimized for timing software RX read - AH works much more faster and smoother .

In package is also version of (ON/OFF) possible to turn ON and OFF OSD layout using ADC5 alarm as trigger . So On and OFF by voltage at ADC5 input

This firmware use EEPROM (BIN file) for normal OSD , so nothing must be done except changing firmware only .

For better layout setting you can use new .lay file to see AH moving bars , to download please look at a. Additions