Hi guys, Is there anyone who has a photo of how the jallib backpack gets connected to the LCD ? I'm struggling a lot, and maybe I'm just doing this the wrong way...
Thanks Seb 2009/7/8 Joep Suijs <[email protected]> > > The diode prevents that the reset-pullup resistor is a load when > high-voltage programming. A 1n4007 will do, but is much larger than > required., > 4r7 (like 4e7) means 4.7 Omh, so quite low. I guess there will be a > little less then 1V over this resistor, so 0.25 will just do. > > Joep > > > 2009/7/8 Sebastien Lelong <[email protected]>: > > Oh, and what about 1N4148 diode ? What's the purpose ? Make sure the > circuit > > is correctly polarized ? Can a 1N4007 do the job ? > > > > ... > > Seb > > > > 2009/7/8 Sebastien Lelong <[email protected]> > >> > >> Hi guys, > >> > >> I'm currently building the LCD interface board (and by this way will > write > >> a new blog post). I'm a little confused by the resistance values. > According > >> to the schematic, R5 is "4R7/0.5W". Does this mean 4.7Kohm or 4.7ohm ? > Does > >> it really have to be 0.5W, or 0.25W is ok (well I guess this wasn't put > here > >> randomly, but I don't have a 0.5W resistance, so I wonder if a 0.25W > could > >> the trick, or if this will result in some smoke...). > >> > >> > >> Seb > >> -- > >> Sébastien Lelong > >> http://www.sirloon.net > >> http://sirbot.org > > > > > > > > -- > > Sébastien Lelong > > http://www.sirloon.net > > http://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 -~----------~----~----~----~------~----~------~--~---
