Dietmar, > I would assume that this is not an application that needs to output a 100% > correct pulse train every time.
Correct. Thats in the design of the pulses themselves (25% duticycle for one state, 75% for the other. Lots of leeway, and self synchronising) > You may just repeat the pattern ten times to be safe enough. :-) I was already doing exactly that. > Combine it with a light sensor for feedback ;-) Well ... I see a few problems with that. Some when I would keep the light sensor next to the Pi, and others when I place it next to the lamp. :-p > Btw. you may want to increase the priority of your task. ... > os.system( "sudo renice -15 -p %d"%os.getpid() ) Thanks. That should help the reduce the jitter. > Anyway, Micropython on a microcontroller would probably be the best > solution. My language of choice would probably be Assembly, but yes. An (atmel) attiny16 (8 pin, 5 free to use) should be enough for it. But .... first experiment the heck outof the Pi to see how well it can do on its own. :-) Regards, Rudy Wieser -- https://mail.python.org/mailman/listinfo/python-list
