Regarding to connectors spacing, I used Eagle files from Freeduino project. When you make a board or a shield, you must set the grid to 50mils and you will have no problems.
I'm always doing this when I do PCB boards (long before the Arduino thing). Is a must when your traces snap to grid ;) . And many times you will need to reduce the grid even more to fit the traces... On short version, I find the 100mils spacing grid to no use in making PCB's so there is a false problem. On Aug 26, 7:28 am, William <[email protected]> wrote: > Greetings, > > Perhaps I am too late with this coment, but: > > Be careful with the pin spacing -- the original 'shields' had a very > weird problem between (their) pins 7 & 8, such that their shields > absolutely do not 'land' on a 100 mil grid. This is a pain if you > want to homebrew your own shields, or if you want to plug an 'off-the- > shelf' shield into your homebrew board or breadboard. > > There are some nice workarounds, like on the Seeeduino, where they > provide two rows pins, so you can choose the weird shield pin-out or a > standard 100-mil grid pin-out. > > I'll go back and review what your goals are for this project before I > say anything further. > > William > > On Aug 25, 2:51 pm, Sebastien Lelong <[email protected]> > wrote: > > > Hi guys, > > > I'm looking for some feedback from Arduino's users. As you may know, a new > > project named Jaluino is aimed to clone the idea of Arduino shields: provide > > a common base, and just plug a daughter board on it. > > > As the project has started, Vasi (Funlw65) also tried to build such a board. > > His board, renamed FreeJalduino, provides the same shape for shield > > connectors, so you can plug an original Arduino shield on it. Looks > > promising. > > > My doubts is how can a PIC provide the same functionalities as an ATMega, > > and as consequence, how can a PIC drive an Arduino shield ? For instance, > > ATMega has many PWM channels (like 6) whereas most PICs have 2 channels (if > > not only one). 18F2550 & 18F4550 have two channels. These differences made > > me think this wasn't possible, but I may be wrong, and would like your > > opinion on this. > > > Should Jaluino be Arduino-shield compatible ? Does the PWM example is an > > exception that could be considered as a "simple" limitation ? Or should we > > go our own way ? > > > Thanks > > Seb > > -- > > Sébastien Lelonghttp://www.sirloon.nethttp://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 -~----------~----~----~----~------~----~------~--~---
