In physics we trust...

img1373p0.th.jpgWith my first flight (brief as it was) successful. I set about playing with the beta release and by the time I had modified nobbles and bobbles the new beta has been released. Going through the check list as usual I setup rc stuff put in a flight plan for auto mode and checked everything with the CLI.
Snow had fallen so I decided I'd give the it a mini flight instead of the huge one planned. Mini flight would be around a nearby park with LOADS of waypoints on a "square" circuit to test the cam code. Everything charged and ready, I plugged in my battery closed her up and turned everything on. The APM board wasn't doing its usual LED show so I made sure the switch was inside and I pressed the reset switch once, twice, thrice (with a wait between). Yet the lights remained in this red flashing state (Any ideas?).
As I have hardware manual on a separate switch to mode changes I thought sod it I'll give it a quick fly now I'm down here to check the new kit I've added. Test motor direction with a single click of throttle and the plane rockets forward at me I grab it and produce a high volume expletive. Yes you guessed it my plane viciously attacked me. Thankfully with it being only a single click of what I can only assume to be more than 30 it wasn't spinning at full speed. 2700kV with a 3S would have been significantly worse for me. When its stopped bleeding I'll take a photo. The motor mount needs to be fixed thanks to my arm being stronger than the cyanoacrylate holding it together.

Well while I fix the motor mount and recharge the batteries. I thought I'd put up some pictures of my butchering.
Picture one - eBay "keychain camera" with shell removed and NPN transistors mounted over the switches. I might desolder the switches at some point a a cleaner install.
Picture two - Shell modification so the transistors fit.
Picture three - Reassembled camera with wires running to Arduino Pro Mini running/reading from APM.
Picture four - Close up of the reassembled camera with bent pins ready for soldering.
Picture five - Camera "installed" in the Easystar frame after some cutting.
Picture six - Camera "installed" with hole (so it can actually see). Hot soldering iron pushed in the right place.
Free Image Hosting at www.ImageShack.usimg1383e.th.jpg
Free Image Hosting at www.ImageShack.usimg13790.th.jpgimg1381rk.th.jpg

E-mail me when people leave their comments –

You need to be a member of diydrones to add comments!

Join diydrones

Comments

  • I've retested everything again and it was having a stupid 5 minutes I think as it hasn't changed but works after about a minute of wait and a press of the reset button.
    The top reset button seems to reset the system as well as the one on the APM board. What was wrong with the revF 2.2 that made the button non functional?
  • I put my post giving a more descriptive LED behaviour on the bottom months ago but I notice it says about B and C now not A being lit. YAY. Ok I'll edit my comment to stop confusion. Cheers Chris, Lets get rocking!
  • 3D Robotics
    That's correct. Please see the manual's page on correct LED behavior.
  • The firmware on it is up to date.
    You are gonna be head scratching because I have no idea what I've done but it works.
    After posting the last comment I left it on the ledge while I did some surfing and then went to watch our recorded CSI: Miami. Coming back I saw the lead out of the window I quickly pulled it back in with it still flashing red. I placed it in my usual position for loading code and testing and immediately I got the startup light show. Nothing had been done physically or coding other than pulling it in from the cold.
    Whether it need to sit for ages or needed the cold its working now.
    Thanks for your patience Chris.

    Although I am curious as to why LED A is not lighting up? I am just plugged into the computer with the receiver connected and transmitter on. I do get the full light show expected so the green (A) does work. BC are on but A is off.
  • 3D Robotics
    The LED on the GPS module is not controlled by APM or the code. If it is not locking outside, you have a busted module. Try updating the firmware.
  • Sorry i didnt make the gps clear. I linked it for you to see. It is the tiny basic adaptor without battery and assembled by DIYdrones.
    I put it on the window ledge for over 10 mins and not got lock and I have before inside and out.
    The GPS module has been getting lock without difficulty until I ungraded to the new beta. I'll see if I still have the old beta and give that a go as I had no problems with that.
  • 3D Robotics
    If the LED isn't solid on the GPS module after it's been outside for five minutes, your problem lies there. You didn't say whether your GPS module had a battery or not. If it does, remove it.
  • It has achieved lock without problem before in my window so I will stick it further outside. I have also checked the continuity of the GPS cable and it's fine.
  • 3D Robotics
    If the MTK is flashing, you don't have lock. Are you outside? It won't work inside most buildings.
  • #define GPS_PROTOCOL GPS_PROTOCOL_MTK

    Still getting attitude through telemetry but not GPS. C is flashing and so is the MTK.
    Can't see it being a bad cable as its been fine all this time and I haven't done anything to it. I'll multimeter it tomorrow. I have the tiny Basic adaptor thing all pre built.
This reply was deleted.