Recent content by bwevans

Its been awhile since I was last on the forum. Ive been busy working on a project where Ill be driving say 30 or 40 unipolar stepper motors with the most minimal circuit I could imagine. Heres the first completed and fully working board: Its basically a surface mount PICAXE08M connected to a...

Hi all. Was working on a project to make use of those 4 hpwm's hidden in that 14M chip and had to draw up a part for a library in Eagle CAD. One thing led to another and I redrew all the chips in the current series. Now I know we have a lot of breadboard enthusiasts here *cough*Stan*cough* but I...

You know this has been asked a hundred times so Im sorry. (I wish the search feature was more robust.) Im going to be running a lot of LEDs off an 18x and to do this I was turning to the venerable HC595. What I wanted to do to is to have each output on the 595 power a single 20mA LED. The...

Im starting a new project that involves 30 (really) unipolar stepper motors of the 5v variety that must be simultaneously (mostly) orchestrated in some manner. Previously I have made a small pcb for each stepper consisting of an 08m, ULN2003, associated resistors (ala schematic in manual section...

A few of us were discussing using the PICAXE in various curricular activities. I agree that breadboards have their place and that wiring up an 08M is not the hardest thing in the world. With that said I wanted a way to give students an even easier route into controlling things with a micro. I...

Ive been searching for a simple answer to this but havent had any luck so far. If I run a signal line, say from an 08m on one end to a ULN2003, through a single stranded 24awg wire could I get 25' out of it from one end to another? In this example Id only be using the toggle command but later I...