Post Created date
zero cross Optocoupler
Nope. You will use a capacitor instead of the humongous resistor. Check this out: http://en.wikipedia.org/wiki/Cap... In an AC circuit a capacitor has reactance, which is similar...
Tuesday, 29 September 2009 - 20:31
zero cross Optocoupler
Yes. Use a capacitor instead ;) It will shift the phase, but you can adjust for that in software.
Tuesday, 29 September 2009 - 20:21
Very short range line-of-sight optical link
The plan is like so: circuitscircuitscircuits circuitscircuitscircuitscircuitscircuits circuitscircuitscircuitscircuitscircuitscircuits --------(45...
Tuesday, 29 September 2009 - 16:30
Very short range line-of-sight optical link
Oh, awesome results you have on the scope! Your LED could be not as ordinary as you think it is ;) I just browsed through some datasheets and it seems that rise/fall times of 500-...
Tuesday, 29 September 2009 - 15:58
Very short range line-of-sight optical link
There seems to be plenty of discrete photo devices available. It's hard to search because normally they're listed unsorted and two adjacent models can have rise times of 3us and...
Tuesday, 29 September 2009 - 15:56
Very short range line-of-sight optical link
Thanks Nard, your research is amazing! I checked out some IRDA transcievers and those up to 4mbps are readily available, although I'm not sure what exactly they mean by mbps there...
Tuesday, 29 September 2009 - 15:28
Very short range line-of-sight optical link
Ooh, I see you see the parts handy! I remember from sound-linking experiments that both the sensor and emitter in TOSLINK are extremely shortsighted. Is there some decent LED/...
Tuesday, 29 September 2009 - 12:06
Very short range line-of-sight optical link
Hopefully never, Nard :D
Monday, 28 September 2009 - 17:51
Very short range line-of-sight optical link
daqq, I'm afraid IRDA and sfh5110 will only offer a small fraction of bitrate I need. CountZero, thanks, I haven't seen Ronja before. I'm looking at their stuff. It seems to be...
Sunday, 27 September 2009 - 17:51
Laser Jet PCB Transfers
I dry my PCB's in the oven/grille too. Hic. Separate from meat. It's hic. I mean it's okay if you let it vent.
Sunday, 27 September 2009 - 11:59
Stepper Motor Controller and the ATMEGA168
icterror: did you try this interpreter: http://hpgs.berlios.de ? It seems to be a HPGL2 interpreter for which you can add your own devices, like custom-made plotters.
Wednesday, 13 May 2009 - 15:00
Atmega 64 Videogame station
Hey, I just noticed this thread, found it while searching for po\h\hsomething else.. I'm sorry for necroposting but it's worth bumping up. Cedric, that's some awesome job,...
Tuesday, 2 October 2007 - 16:36

Pages