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HexAirbot / HexNanoMWC_HEX

A modified MWC2.2 flight control for Flexbot hex board.
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not able to hover #4

Open extremeshok opened 10 years ago

extremeshok commented 10 years ago

the hex should be able to hover, and not require constant manipulations of the control to keep it stable and hover.

droidmonkey commented 10 years ago

This would require a sensor to determine it's height (barometric or ultrasound) or a very sophisticated algorithm for the IMU in the z-axis. The problem with IMU is that of drift, so even if you were successful you would still have a problem with a moving height due to inaccuracies in the sensor itself. Absolute measurements is really the only way.

JuanColilla commented 10 years ago

When I leave the controller it follows the last order and it is dangerous and hard to controll, I think that when you leave any of the two joysticks the correct behavoir of the drone has to be to stay stable in the air without follow the last order, only over and autostabilize... It will make the drone easier to use and fly :D and less dangerous!

extremeshok commented 10 years ago

exactly, the drone should always try and hover upright. The forward/backward and up/down should be to alter its course, and then it should go back into hover.

(idle) || || || || || || (move left via control) \ \ \ \ \ \ (drone auto stabilse) || || || || || || (move right via control) // // // // // // (drone auto stabilse) || || || || || || (idle) || || || || || ||

Currently the hex is more twitchy than my 6channel rc helicopter. Its a hexcopter, it should be stable and able to hover or attempt to self stabilize.

HexAirbot commented 10 years ago

Just as Droidmonkey said, This would require a sensor to determine it's height (barometric or ultrasound) or a very sophisticated algorithm for the IMU in the z-axis. And adding a sonar is good choice.

extremeshok commented 10 years ago

if you tie a peice of string to the center under neath of the hex, tie that to the floor and then power it up, you will see how badly it drifts around and over compensates as it tries to level.

Using the the latest release,

Obviously the code for the gyro and magnetometer is as fault.

extremeshok commented 9 years ago

Still nothing from hexair...aka flexbot

Pretty much they created a useless product.

kaushikdas0 commented 8 years ago

Bump! Any update on this. I have a hex copter from flexbot. The specification says the hardware should have gyro, accelerometer, barometer etc. , any source i can use to see if this can hover. Controlling is painful