I was waiting for my props (they had an odyssey thanks to Poste Italiane, a long story worth a whole post…), than i saw an old bluetooth GPS, useless nowadays.
Than i ripped apart the GPS(hopefully it will be used in the quad someday), modded a little and attached to the Quad Arduino.
I only had to change the MultiWii firmware to slow down serial speed to 32800 (I haven’t found documentation of the module to change the speed).
In some days i should receive a new module bought from Ebay( Sure Electronic) that’s able to support 115200, that i will integrate into the main board.
Now I can use the MultiWII interface for short range remote telemetry on the quad, very useful for setup the PID.
here is the pic:
In this post i’ll show the new version of the quadricopter I’m building.
It’s based on the excellent work shown here MultiWiiCopter (previously TriWiiCopter)
The copter is based on
- 4x HXM2730-1300 24gm brushless outrunners from hobbyking;
- 4x Hobbyking blueseries 12A ESC (please, do yourself a big favor: BUY THE PROGRAMMING CARD, unfortunately in my case it was in backorder so I became crazy with strange and unfinishing beep sequences);
- 2200mAh 3S 20C lipo (lesson learned: it is a lot better to use a lighter lipo, it weights slightly more than 180gm);
- Arduino nano clone (dfrduino);
- Spectrum AR6100 clone 6ch receiver;
- WiiMotion+ clone (one with IDG gyro, performance wise very close to the original one);
- self made breadboarded pcb to contain all the electronic stuff;
Actual frame is built with 4 12x2mm Carbon fiber arms, joint in the middle with a 70x70x4mm birch wood multistrate plate.
it has a dry weight (without battery) of around 350gm with props installed.
Previously the frame was a cross made from 8x8mm Alu U profile. No need to say that after a long list of crashes (this was the first flying thing I flew) at the end it gived up.
Some picture of the new and one of the old one: