The 'ultimate rev counter' thread...

[Ricardoco]

Wow,almost identicle to this one belowthat I was having a look at two nights ago?

http://www.jeffree.co.uk/pages/revmaster.htm

Is there not a way to knock one up without the use of a PIC? itmeans I have to buy a programmer or look for someone selling a chip prorammed using their design

Hey george, I got one of these the other day, im very pleased with it and for what is costs Im amazed..
fleabay item number:-250641581270

Rick

[irving2008]

Hey george, I got one of these the other day, im very pleased with it and for what is costs Im amazed..
fleabay item number:-250641581270

Rick

On the subject of programmers the short answer is 'it all depends'

If you want to burn code that somebody else has developed then a simple one like this is fine....

If you want to write code for simple solutions that are not demanding and you can debug with simple tools - multimeter, logic probe, then its OK

If you want to do the job properly, debug on the fly, validate complex performance relationships, and not waste hours on goose chases then you need a proper in-circuit debugger/programmer.. for PICs I use the PicKit2 which was £30, thats less than £1 per project so far and I reckon its saved me that in time alone (even my own time has an opportunity cost value), plus I have had no issues with each update of the development environment (not true of many 3rd party options) and the range of PICs it works with is huge.