Bitcraze Forums

BillyBag2 wrote:So I think I am a bit snookered.

It looks like the voltage reg on the module has a ultra low droput voltage of 120 -200 mv. So VCOM from the battery is probably enough to drive the regulator. The ident is PHUI

Ok? Power? The flie has 2.8v when disconnected from power and the vcom (I assume the battery power) is available. The device is 3.1 to 3.6 typical and has a 3.7 absolute Max rating. There is a "5v" regulator on the module board for working with a 5v supply. But I do not know the spec. I am...

I connected the adns-3080 to the rapberry pi and used the test code https://github.com/x75/adsn3080-emd , chopping out the bits that did not compile. This code is very simple and does not do any setup. It appears to work fine. Did not try getting the image. The code used the power on settings withou...

Could not resist and I have ordered one. If I get it going I will try and remember to post some info. OK? Its arrived. (Please do not laugh) "Its a bit bigger than it looked on ebay." I do not have any good scales to wiegh it. I'm guessing from the kitchen scales it is between 8-15 gms. T...

I had the first barometer assisted flight. Worked quite well. I think over a meter or two I was getting 10%ish swing on the thrust. (a guess) So now the thrust setting on the controller is abit more like height, rather than before where it was ether flying away or crash landing. I have not found an ...

Oh, and you probably want to smooth the signal. I found pressure = pressure * 0.92 + new_pressure * 0.08 worked best. After looking at the code I read the spec for the device. I have not looked back at the code(yet). It's quoted worst convertion time is just under 10ms, which gives you ypur 100Hz w...

Hi all, I have been looking at getting the crazyflie to hover. The current efforts are towards barameter assisted thrust. By measuring the barometer at the start and then appling a small, propotional, correction to the thrust I am hoping to increase the height stability. Propotional is easy as the s...

I'm guessing you want a short full thrust. Then cut the thrust and invert. Then invert back and add another burst of full thrust. A bit like having a plate on your hand. rasing it quickly and then inverting it. So its upside down on your hand without holding it there, momenteraly. Note that you do n...

Thanks, i will try it.. To get better control over the thrust I set the minimum higher and and maximum lower, about 10% or 20% between them. It does varies abit as the battery gets flat, so you may need to adgust again. However in practice it does not last too long after the power first starts to d...

hey, i think the easiest way would be to get an optocal flow sensor and hook it up to the i2c port. Check out this: https://code.google.com/p/arducopter/wiki/AC2_OptFlow+ and this: https://github.com/diydrones/ardupilot/tree/master/libraries/AP_OpticalFlow you can get the sensor here: http://store....