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Hi all. Am about to start a new Picaxe project using the above (QTR-1A) but have yet to get off the mark. Having hooked it up to a 5v supply I can find no output with a meter. All of the documentation suggests that I should get between 0 and 3.3v on the output (signal) connection depending on...

Hi Picaxers. I’ve delayed this post for a week whilst slowly pulling out what remains of my hair, ‘cos there’s a good chance I’m doing something silly, but here goes. (By the way I have had a good look through the forum, and a lot makes sense but still hasn't helped). I am working...

Or rather not at all. Briefly, I'm learning about Picaxe (28X1) by slowly developing a method of determining the speed of an object using a Sharp IR rangefinder (GP2Y). Have reached the point where I can make 3 LEDs come on to indicate slow, medium, fast, but to refine the output (to control a...

Hi everyone- first posting on this site, but fingers crossed. Recently bought a rev-it 28X1 board to revise my knowledge on Picaxe, having dabbled in a few years back when teaching. Working through basic programs, all going well- LEDs flashing, etc. Try to use analogue input. Didn't work- no...