Hi, Using microchip chip to provide hardware PWM channels would cost a lot more than having a dedicated chip, don't you think ? That's really annoy me: there are so few PWM channels in PIC compared to Atmel...
I was thinking to use a PIC as controller of the whole board: commands would be sent to it, then it would throw them to dedicated PWM chip. It could add i2c interface, could store parameters for each servos, store sequence of commands, maybe with an extra EEPROM. Would it still sound like a surrender ? ;) Cheers, Seb > Sounds like a great project! > > But if you are gonna have two chips ( JAL chip + PWM chip), why not > just use two JAL chips? I've used the 3 channel 16F777 in the past, > and a quick scan of microchip shows some 5 channel devices available > for 16F and 18F. > > William > > > On Oct 10, 2:32 pm, Sebastien Lelong <[email protected]> > wrote: > > Hi guys, > > > > I'm still thinking about a nice servo controller made in jallib (at least > 8 > > channels I'd say). Goal would be to provide a Jaluino shield too. While > we > > already discussed about implementing PWM in software, this can give > problems > > of accuracy. What about using a dedicated chip, like TLC5940 ? > > > > http://focus.ti.com/docs/prod/folders/print/tlc5940.html > > > > It's used to control LEDs, but it seems it can be used to control servos > too > > (in some arduino references). > > > > Don't you think it would speed up development of such controller ? > > > > Cheers, > > Seb > > -- > > Sébastien Lelonghttp://www.sirloon.nethttp://sirbot.org > > > -- Sébastien Lelong http://www.sirloon.net http://sirbot.org --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/jallib?hl=en -~----------~----~----~----~------~----~------~--~---
