GY-91 board

[highfreq]

It has become almost impossible to find a genuine GY-91 board around. I bought 4 different and all of them have different chips onboard and none of them work. Is there a way to use a different, more available, hardware on obal?

[highfreq]

It says MP92 U601A1 2148 on the accel chip but i found other people saying it is a fake. Probably that is why accel do not work and i get INS initialization error. Now the problem is where can i find genune GY-91 boards?

[HefnySco]

IMU-9250 works well.but you need to add bmp-80 baro as I2C.

[HefnySco]

yes I bought GY-91 from AliExpress and it was fake.

[highfreq]

can i connect the 9250 on the GY-91 board? Is 9250 same pinout as GY-91 for the GY-91 board?

[HefnySco]

Not the same pin out so you need to solder it with external wires but it will work.

[highfreq]

Do i have to change anything else in the software to make it work and to disable the barometer (i don't need barometer).

[highfreq]

Would you please tell me how to wire the 9250 on the GY-91 board.

Also, how do i calibrate accelerometer? Can i do it using Mission Planner and connect to it using ethernet or do i have to somehow connect to the board with usb?

[HefnySco]

[image: image.png]

On Sun, May 28, 2023 at 1:22 PM highfreq @.***> wrote:

Would you please tell me how to wire the 9250 on the GY-91 board.

Also, how do i calibrate accelerometer? Can i do it using Mission Planner and connect to it using ethernet or do i have to somehow connect to the board with usb?

— Reply to this email directly, view it on GitHub https://github.com/HefnySco/OBAL/issues/42#issuecomment-1566070607, or unsubscribe https://github.com/notifications/unsubscribe-auth/AA75SNIP5Y6275QKCVFUP5TXIMRPLANCNFSM6AAAAAAYOWRNT4 . You are receiving this because you commented.Message ID: @.***>

[HefnySco]

Yes you can calibrate using MP or QGC.

On Sun, May 28, 2023 at 1:22 PM highfreq @.***> wrote:

Would you please tell me how to wire the 9250 on the GY-91 board.

Also, how do i calibrate accelerometer? Can i do it using Mission Planner and connect to it using ethernet or do i have to somehow connect to the board with usb?

— Reply to this email directly, view it on GitHub https://github.com/HefnySco/OBAL/issues/42#issuecomment-1566070607, or unsubscribe https://github.com/notifications/unsubscribe-auth/AA75SNIP5Y6275QKCVFUP5TXIMRPLANCNFSM6AAAAAAYOWRNT4 . You are receiving this because you commented.Message ID: @.***>

[highfreq]

Hello, the image doesn't show.

Trough QGC or MP on ethernet is ok?

[highfreq]

@HefnySco any chance you can repost the wiring pic?

[highfreq]

@HefnySco can you please repost the wiring image? It doesn't show.

I have been trying to have Obal working for more than a month now with no success.

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????

[highfreq]

WOULD YOU MIND POSTING A WORKING PIC ON HOW TO CONNECT A 9250 TO A GY-91 BOARD?????????