It is my first drone
Motor to motor distance : 140 cm
Rotor diameter:70 cm
Maximum size:210 cm
Weight: 1.6 kg ( esc, motors and wires) without batteries
White gears are from HK450 class helicopter with one way bearing for autorotation
Tested in the house tied to that piece couch. At full thrust it tried to lift the couch which has over 14 kg
I tried to use Arduino to level the drone but using just the accelerometer is quite hard. I'm trying now using accelerometer wii motion plus gyro combo
I filtered the data from the accelerometer using a simple low pass filter. I'm currently trying to understand Kalman filter.
I tested it outside but it failed to level the drone and have a little crash. The damage was only visible on the pipes. So I bought a new set
Is the accelerometer sufficient for the job?
I also bought a lot of sensors (sonar, barometric sensor with 9 cm resolution, gps, magnetometer 1 axis, gyro, and KKcopter controller board to replace my arduino)
Accelerometer is not enought to stabilize quadrotor. Main reason is that because of vibration.
And also accelerometer can't stabilize yaw.
Thanks. I've managed to filter vibration using low pass filter. I'm currently testing a standard quad - gyro only
can you get the ratings of the motors, and then plug all of your variables into the formula found here to get an idea of how much this quad can lift
Using the formulas from that page and minimal motor power wich is 420w the lifting power is 36.36 lb (16.53 kg)
But I've tested those motors and their real power is close to 880w (after 10 min at 880w they were barely warm)
Using the 880w data the lifting power is 60.54 lbs (27.52 kg). Also if I use 500 mm blades and 880w motors lift should be 80 lbs (36.45 kg). I've verified those formulas on Martin jetpack and came close (a little under) to their real data. I will post soon some video of quad testing ( accelerometer only).