This is a project I did for a high school engineering project. I had some of the stuff laying around, so it only cost about $200. I have experience using the Parallax BS2 (Basic Stamp 2), and had a spare board laying around. This is all after i finished. I had not planned on making this an instructable, but figured, what the heck!
Step 1: Materials
HB-25 motor controller (x3) ((Any motor controller that can accept a servo pulse should work))
IR-sensor pair (x2)
Hitec HS-322HD servo
EDF-50 style ducted fan (x3)
Foam Board roughly 13" by 9" (x2)
battery pack 7.2 volt
Optional 6v battery pack for microcontroller
first five from Parallax.com
servo lying around
fans from local hobby store
7.2 v Ni-Mh from hobby store
battery pack harness from Hobby store
forgot to add switch to mine...
Step 2: Collect Materials/test
Step 3: Construction
i DO not know what happened to the image notes on this page... but it is the EXACT same image as the first page.
Step 4: Programming
The next step is loud, and high pitched... turn your speakers way way down. and make sure your cat is out of the room.
i do not have the program on this computer... i do not know why... and the image is too small in my window for me to put any real notes on it... sorry!
Step 5: VIDEO!!!! Turn Down Your Speakers...
Step 6: Reasoning
I have separate power systems so that if the motors suddenly call for a surge, the micro controller will not reset from power loss. The micro controller is powered by four AA batteries, which also power the steering servo. The fans and the HB-25's are powered by the Ni-Mh pack, which only allows for a few minutes of "flight", but it is plenty for my uses. With the current set up, i have limited to no spare lift, but larger, more powerful fans could easily give at least a few pound/kilos of lifting capability, and the HB-25's have a voltage range up to 12/13 ish... the fans are only 7.2v. and i have them running at factory voltages.
same as step four... sorry!