You might find some relevant content here -

http://rcarduino.blogspot.ae/2013/06/rc-arduino-traction-control-traction.html

Duane B

rcarduino.blogspot.com

Hi,

I had a stab at explaining it here, its not any easy topic -

http://rcarduino.blogspot.ae/2013/06/rc-arduino-traction-control-traction.html

Duane B

rcarduino.blogspot.com

This might help -

http://rcarduino.blogspot.ae/2012/01/can-i-control-more-than-x-servos-with.html

Duane B

rcarduino.blogspot.com

It wasn't a Jamie Lidell gig was it ?

Duane B

rcarduino.blogspot.com

This week I will try to get some long exposure pictures of this system running at night to that I can see a trace of the traction situation before testing any control algorithms, for now, here is a draft update on the RCArduino traction control project

http://rcarduino.blogspot.ae/2013/06/rc-arduino-traction-control-traction.html

Duane B

rcarduino.blogspot.com

I have managed to use Duane's code, together with GPS to make an autonomous vehicle navigate to a waypoint.
It was very smooth and easy to understand his code before I got to it...
I can take over control at any time by turning on the transmitter.

Got a video ? I will put a link to your project on the blog if thats ok ?

Duane B

Why not just use the servo library, its standard, well supported, means you can port code from the 8-bit Arduino's etc ?

This example outputs 8 servo signals and reads them back in using interrupts -

http://rcarduino.blogspot.ae/2013/04/reading-rc-channels-with-arduino-due.html

Duane B

rcarduino.blogspot.com

Hi,

   Start here -

http://rcarduino.blogspot.ae/2012/01/how-to-read-rc-receiver-with.html

   Once you can read the incoming pulse width using the code above, you can add an if statement to turn your camera on and off, but the starting point is the code in the post above - or you could use the dreaded pulseIn function

Duane B

rcarduino.blogspot.com

Hi,

You have almost certainly wired the Pots incorrectly, can you post a diagram of what you think you have done and a picture of how you have done it.

Duane B

rcarduino.blogspot.com

This uses a simple IR LED and IR Receiver, it works very well at high speed in the Dubai sunshine.

http://rcarduino.blogspot.ae/2012/09/lap-timer-build-along-part-3-timer.html

The key to getting this working was -

1) Spray paint the inside of the receiver enclosure with 'ultra flat' non reflective camouflage paint

2) Fix the received so that it is an inch back from the small opening in the enclosure

This ensures that only direct light is able to reach receiver, all indirect light is absorbed by the non reflective pain before it can reach the detector.

You can find details of all the components etc by following the other posts in the build along.

Duane B

rcarduino.blogspot.com

Hi,
   One way of keeping the weight low - as in low down where it helps rather than high up where it does not - is to use PCB as the chassis material. Lot of guys have done this in the past becuase its easy to solder home made chassis together this way. With a bit of though you could design an Arduino chassis.

Lots of examples here -
http://slotblog.net/topic/19762-even-more-pcb-chassis/

Duane B

rcarduino.blogspot.com

If your already using a wavetable for your sinewave, why not use it in the calculation as well, thats going to be a lot faster.

If you really wanted to generate a band limited squarewave, you could do the calculation in loop and flag your ISR when the wavetable is ready this way you get what you want reasonably quickly without messing up the audio generation.

Alternativley I have seen that wave shaping can acheive the same result with less computation however I have not yet been able to understand this approach

Duane B

rcarduino.blogspot.com

I disagree a bit - if your output is 8-bit there is not much point in having higher resolution wavetables.

I assume that you want more than one output channel so even your 8 bit samples end up being around 6 bit resolution by the time they are down shifted into the output resolution.

If you have 12 bit or 16 bit output then yes it makes sense to have longer more detailed wavetables or to interpolate between samples in your tables, but with 8 bits, 256 is optimum.

Duane B

rcarduino.blogspot.com

Have a look at 'input capture' or turn the interrupt off as soon as you have a reading, process the reading and then turn interrupts back on

Duane B
rcarduino.blogspot.com

Try this -
http://rcarduino.blogspot.ae/2012/01/how-to-read-rc-receiver-with.html

Duane B
rcarduino.blogspot.com