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1  International / Nederlands / Re: Aanvangsprobleempje! on: November 10, 2012, 06:54:46 am
Ben er al achter, andere compoort!  smiley-red
2  International / Nederlands / Aanvangsprobleempje! on: November 10, 2012, 06:25:47 am
Hallo,
Ik probeer de blinkled sketch te uploaden naar mijn duemillanova maar krijg steeds de melding not in sync,

de rx/ tx leds doen niets tijdens upload.
Wat doe ik  fout?smiley-red
3  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: research for cruise control on: October 17, 2010, 10:46:06 am
@pluggy
Thanks, this helps me getting started
4  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: research for cruise control on: October 17, 2010, 10:41:44 am
@paulS
I am honored that you care about my safety ,
I have an electronics background and i am a plc programmer.
I know how to meaure time witha plc where you are constantly polling a register but i am not so familiar with c programming indeed.
I will not put it in my car untill it is fully tested
5  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: research for cruise control on: October 17, 2010, 10:28:10 am
i'm not measuring yet, i calculated the time frame according to wheel diameter x pi, so when i,m drivind 100km/h the wheel revolutions are 51340rev/hr equals 14,26 rev/sec equals app. 70 msec/rev.
but the calculation is not the problem, its making the arduino understand how to measure the time between the pulses so that i can compare it with my setpoint and control the throttle with a pwm output and a simple pid sketch
6  Forum 2005-2010 (read only) / Frequently-Asked Questions / Re: research for cruise control on: October 17, 2010, 10:15:53 am
Don't worry i am taking the necessary safety precautions such as clutch and brake switches and a fuse puller
7  Forum 2005-2010 (read only) / Frequently-Asked Questions / research for cruise control on: October 17, 2010, 10:08:42 am
Hi,
I am a newbee :-[
I'm trying to figure out how to measure time between 2 incoming pulses that are approx 70 msecs apart. when i attach a sensor to my cars wheel axis and i am driving 100 km/h this is about the time frame.
My question is : could anyone give me a hint how to store the value so i can compare it with a setpoint?  :-?
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