Hi Guys,

I have a MATEKF405CTR and the altitude is showing inaccurate by +- 5 meters in the OSD.  

Any ideas on how to solve this?

Thanks.

You can try putting a bit of foam over the hole in the barometer, but the bottom line is that I've found the barometer on flight controllers to be quite inaccurate. I have a Matek F405-STD and I just accepted that it will never give me a decent reading. Mine sometimes reads almost 10m when I'm just centimetres of the ground about to land. I gave up trying to get an accurate reading from it. If I arm the quad and just remain stationary on the ground I can actually watch the altitude height creep up bit by bit when my quad hasn't even moved a millimetre. I only really use it to give me a rough idea of how high I am and just subconsciously subtract ~10m from the actual reading.

Hi SL, i don’t know where that barometer is located on the board. Can you tell me?

(22-May-2020, 11:42 PM)lleston2 Wrote: Hi SL, i don’t know where that barometer is located on the board. Can you tell me?

It's item "D" in the image below. You will see it has a tiny hole in the top of it.