I had a nasty crash last weekend. (More to follow…) Now my IMU shield needs some repair :) Fortunately it still boots up and the imu test results make some sense. Here's a pic of what has gone missing on the board plus my thoughts about how and what to replace:
There are two things I need your advice about.
A - missing caps:
My board is of a different revision than the one documented in the wiki. On the back side it says "DIYdrones.com HOTEL1.0" and "8/19/2010". Comparing it to the schematics on the wiki I think the missing components are C23 and C25 with a value of 0.1uF respectively. I'm only an amateur with electronics, so I would be glad if someone with more insight or access to the corresponding schematic could check, if my assumptions are correct.
B - flight mode switch:
There's this new "3x return" thing to enter CLI mode. Does this also work with the older hardware revisions or only with the new APM 2.0? If it actually works with my hardware I could just hardwire it to flight mode and forget about the hardware switch, right?
In general, would you advise to try repairs and fully trust the autopilot again, or would you consider it unsafe to use it after this kind of damage? Obviously, I don't intend to fly a commercial airliner with it :)
Thanks a lot for helping me out!
Links to schematics in the wiki (wrong revision):