OK, I got my shiny new APM2 purple board on Tuesday. I powered it up with the microUSB cable, installed 2.1a and everything checks out. Easiest Out-Of-Box experience ever. I can't find Arducopter APM2 docs yet, but I found the ArduPlane wiki now has an APM2 section, close enough.
Attached my ESC, minding polarity to the outputs, but I can't power up the board. I checked the ESC, I have 5v out, then I tried a spare ESC, same thing. The APM2 shows 5v with the correct polarity on the output rail, so there must be a missing jumper somewhere.
But I can't find any jumper info yet...
OK, found it. Poking around with the DVM a little, J1 needs to be jumpered if the ESC BEC is going to power the board.
I know the documentation is a little lean at this point, but for $199 it would be nice to at least throw in the jumper itself so the board can be used "as shipped". Gotta find one of those small a$$ jumpers now...
I think all the boards shipped this week (ie, after last week's batch) had those pins both soldered and jumpered. Perils of being first...I'm sure the store will send you some jumpers if you ask.
No worries, don't have one handy so the soldering iron is powering up now. :-)
Mine did ship with the jumpers.
I am busy setting up my APM2. I understand you are still updating the manuals or I missed the info somewhere? I am new to APM so I would rather ask than assume.
Just want to find out how the powering of the board works w.r.t. using a separate power source. How would I go about using a 2 cell 2100 mah Lipo as a source to power APM directly as the APM2 instructions refer back to APM1 instructions and that involves the SJ1 solder jumper? Preferably I would like to power both APM2 and my servos off the 2S and leave my motor supply separate on a 3S. I have a 3A 5v switching UBEC that I can use with the 2S and my APM2 also shipped with the above mentioned jumpers and connectors..
ps. Great work on APM2!
Tiaan: You can't use a battery directly. It must go through a power regulator such as an ESC. So just use your UBEC (connected through a spare Output pin) and make sure the jumper is on, and you'll be fine.
Thanks Chris. Ok so just to double quadruple check confirm, 2S Lipo > standalone UBEC > spare output pin, plus jumper on JP1. Then seperately ESC (no BEC) connects to 3S Lipo and throttle/output 3 for normal motor control only.?Have no desire to fry anything on the first connection. :)
Yes, just make sure you don't have the red wires connecting from your PDB/ESCs and the APM2 in that configuration (it wouldn't fry your board, but you've have current conflict, which would drain your batteries fast)
Thanks Chris. Appreciate the help. :)