With pin header I must add ! But you're right, better adding them right now before I forget (and I'm starting to...)
Cheers, Seb 2011/1/24 funlw65(Vasi) <[email protected]> > How you will connect the board to shields and/or modules? > > On Jan 24, 6:04 pm, Sebastien Lelong <[email protected]> > wrote: > > Hi guys, > > > > So I'm about to change voltage regulators to dedicated ones (no more > > adjustable). I'd use AMS1117-5V and AMS1117-3.3V. These requires 22µF > output > > filtering capacitors, tantalum ones. Just my curiosity: is tantalum > really > > needed ? Or "standard" aluminium electrolytic ones enough ? (can be > > cheaper). I read tantalum's are smaller and more reliable. Do E-cap, > C-cap, > > ... form factors (I think that's the name) often used in SMD design ? > they > > really just look like PTH caps and seem very tall: > http://rocky.digikey.com/weblib/Nichicon/Web%20photos/UD%20SERIES%204... > > > > I would have kept 100nF input capacitors, but datasheet doesn't mention > it's > > required or recommended. > > > > I've also replaced solder jumper with "standard" PTH jumper, this way, if > > prefered, soldering a wire is still possible. > > > > Cheers, > > Seb > > > > 2011/1/23 Oliver Seitz <[email protected]> > > > > > > > > > >Also, what do you think about having standard 0.1" pitch jumpers, > usable > > > with pin headers (big but flexible), and potentially use 0805 0 ohm > > > resistors instead (small, but more definitive). I hope you understand > what I > > > mean. Is it doable ? (I don't even want to ask if it's standard, but, > maybe > > > there's another better/standard option). > > > > > There are not-so-common 2.0mm jumpers that are somewhat smaller than > the > > > 0.1" types. But I for myself, I do have solder sucking wick, so solder > > > jumpers would do for me. You can close and open them again, multiple > times. > > > I don't see it as a problem. If resistor pads were used, I'd solder a > piece > > > of wire there, no resistor. Wire is easier to remove than a real smd > > > resistor. > > > > > For the voltage regulator, you could use an adjustable low-dropout > type, > > > like TS1117, but there are drawbacks like maximum input voltage=7V, > minimum > > > load current=10mA. > > > > > Greets, > > > Kiste > > > > > -- > > > 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]<jallib%[email protected]> > <jallib%[email protected]<jallib%[email protected]> > > > > > . > > > For more options, visit this group at > > >http://groups.google.com/group/jallib?hl=en. > > > > -- > > Sébastien Lelonghttp://www.sirloon.nethttp://sirbot.org > > > > jaluino_v02_bee_schematic.png > > 60KViewDownload > > -- > 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]<jallib%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/jallib?hl=en. > > -- 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.
