> > I want a PIC with two ADC inputs ( 10bits ) , 8 GPIO , a > > timer ...... It can be as slow as molasses. What is crucial to > > me is that it is $5 or less: that I can pick up a cheep and trivial > > method of programming it ( $25 ) ; that I can get a cheep development > > IDE with Basic or C or whatever ($ 25 ) ; that it runs on 3.3 or 5 > > volts. The bigger the physical size of the pins, the better. DIP is > > better than SOIC, etc. > > You know, this is exactly the sort of thing that results in the > popularity of the BASIC Stamp, Arduino, and other similar "plug and > play" microcontroller solutions. > > An Arduino will cost between $10 and $40 dollars, but includes the > "programmer" and "development environment in C" for free (complete > with pre-done analog input functions.) So the "total expenditure" is > well within the $55 budget you mention. And the "pins" are even > bigger than a DIP. Given only "passing familiarity" with > microcomputer programming, you could churn out a working prototype in > a day. > > I think a BASIC Stamp would run a bit more $$ (but still less than > $55) and not have as many options for "commoditization" of subsequent > builds, but it's also a possibility. Or the PicAxe. It's just the bare chip and needs a 3-wire serial cable for programming. Runs Basic though, which might annoy the 'Real Men' (TM), but the customer need never know, and won't unless you tell them. Tony -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist