Regards, Greg On Apr 26, 2012, at 11:50 AM, Bob Blick wrote: > Tag added. >=20 > On Thu, Apr 26, 2012, at 08:07 AM, Cubcruiser wrote: >> 20 years ago when I was still a practicing Engineer I ran across a >> company that was making single board computers based on the 8051 using >> Chip on Board technology. All the support hardware was on the small boar= d >> which I believe was about 2x3. This board was attached to your main boar= d >> via a couple of rows of pins that plugged into connectors or were >> soldered in place. You the designed your main board with all the >> interface hardware you needed.=20 >>=20 >> It seems like this would be a low cost way of designing a prototype >> system and then transition into a reasonable cost small production run o= f >> parts. I have started looking and I would guess that the Arduino and PIC >> development boards are a similar concept but from what I have seen they >> tend to have extras on board that I don't need and are priced >> accordingly.=20 >>=20 >> I am going to design/build a run of about 30 motor controllers that will >> drive 30 amp (max) motors bidirectionally and will have a keypad and LCD >> display.=20 >>=20 >> Any suggestions on a system that will allow me to prototype and then >> build a small run cost effectively? I don't think that I will be able t= o >> build multi layer boards for the processors but could build one for the = H >> Bridge and other interfaces.=20 >>=20 >> Regards, >> Greg >=20 > --=20 > http://www.fastmail.fm - Access your email from home and the web >=20 > --=20 > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .