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"the mikrokopter also has an autopilot. not sure how far they are, but they have gps position hold, which should be "easy" to extend to fly to waypoints.
they also can be made with cheaper hardware. my quadrocopter uses cheap hobbycity motors and…"
they also can be made with cheaper hardware. my quadrocopter uses cheap hobbycity motors and…"
"hmm, that sounds too complicated... you seem to want to check that regularly... like multiple times a day. taking care of a plane that does this will need quite some maintainance... you'll also need review the videos, manually start and land the…"
"hey
i recently got mine flying, it's very stable, check out my page.
i would recommend, that you first get your imu running, at a fast enough rate. at the minimum least 200Hz (better 500hz or more). that means, this often read out the imu-data and…"
i recently got mine flying, it's very stable, check out my page.
i would recommend, that you first get your imu running, at a fast enough rate. at the minimum least 200Hz (better 500hz or more). that means, this often read out the imu-data and…"
nothing new since last post, but here's a video:it might look stressful but keeping it this way was really easy, easier than my rc helicopter.
a little info i couldnt find anywhere else. while programming my quadrocopter, i somehow messed up the throttle start and end-points of one of the esc's. the motor started only when the throttle was already in the middle. after some googling and…
a few weeks ago i decided to build a quadrocopter. this would be a real challange but still inside the capabilities of the pcb i made. i actually designed it with plane-uavs in mind. but there's no reason it wont be able to controll a…
"@chris: that's correct. but ORing the signals (not anding as i wrote before) could still work...
it just seems very wrong to me to use that much cpu time waiting for a signal....
i think a saw a simple port expander ic, which had a input-capture…"
it just seems very wrong to me to use that much cpu time waiting for a signal....
i think a saw a simple port expander ic, which had a input-capture…"
"http://diydrones.com/profiles/blogs/705844:BlogPost:39393
this will read the sum-ppm-signal of all channels, without using any cpu (less than 1%). can easily be modified to read one channel, or any other number you like (by ANDing all the channels…"
this will read the sum-ppm-signal of all channels, without using any cpu (less than 1%). can easily be modified to read one channel, or any other number you like (by ANDing all the channels…"
slightly offtopic, but the servo-interface might be of interest to some people. here's my 6 legged walking roboter. there are 3 servos for every leg.these are connected to two 4017 ic's (10 servos max each) and these are connected to the two…
"@chris: i think the memory will be the bigger problem. mikrokopter.de is using similar hardware, but with 64kb. might update to a 20mhz crystal if needed...
@james: i have to 150degrees/sec version. should be enough.
@jack: they have the modules…"
@james: i have to 150degrees/sec version. should be enough.
@jack: they have the modules…"
because there's no easy way to connect the arduino to a normal perf-baord (stupid 2mm space between digi7 and digi8) i decided to make it the right way from the beginning. so i downloaded eagle and played around the last few days. this is what has…
"hey! thanks for the interest :)
here's some understandable descrition of interupts:
http://www.uchobby.com/index.php/2007/11/24/arduino-interrupts/
the code first setups the timer1. this is the only 16bit timer on the atmega168/arduino. this means…"
here's some understandable descrition of interupts:
http://www.uchobby.com/index.php/2007/11/24/arduino-interrupts/
the code first setups the timer1. this is the only 16bit timer on the atmega168/arduino. this means…"
the atmega168 on the arduino has a timer1 which has input capture capability (see this application note and datasheet for atmega168 for details). using it, it's possible to do the pulse timing in completly in hardware (no errors, no jitter), and…
"i was experimenting a bit with my code. the servo glitched slightly every 3-4 seconds. the problem is that delaymicrosecond will disable interupts, which means that the measurements will be way off... no matter if i do it inside the interupt or…"
"getting the raw ppm signal would be the best way.
i just had the idea:
you could connect both servo-signals to pin2 and adjust the above code! since the ppm decoder in the receiver is usually a simple shifter, the signals will come one after the…"
i just had the idea:
you could connect both servo-signals to pin2 and adjust the above code! since the ppm decoder in the receiver is usually a simple shifter, the signals will come one after the…"
