While out last minute christmas shopping, I saw a cheap toy that gave me some ideas. Haven't really thought out all the details or direction I'll finally take, but I'll need a Pan & Tilt device.
Want to use steppers, because I have a bunch of them, have driver chips (haven't pulled them, or looked up the part numbers, but they go with 4 steppers I pulled out of a slot machine). Anyway, the load should be in the 10-12 ounce ranges, shouldn't be a strain; video camera, laser pointer, and a $15 dollar 'toy'.
I'll be using an AVR microcontroller, maybe two, to controller the steppers and the 'device'. Would like to do it wireless, but think that might add to the complexity and expense. I've got a big spool of 4 conductor telephone wire that might work well enough.
What I'm really looking for is how to setup the pan/tilt using steppers. I've seen a few using servos, might be able to use something from there, but would like to find something more stepper specific.
Want to use steppers, because I have a bunch of them, have driver chips (haven't pulled them, or looked up the part numbers, but they go with 4 steppers I pulled out of a slot machine). Anyway, the load should be in the 10-12 ounce ranges, shouldn't be a strain; video camera, laser pointer, and a $15 dollar 'toy'.
I'll be using an AVR microcontroller, maybe two, to controller the steppers and the 'device'. Would like to do it wireless, but think that might add to the complexity and expense. I've got a big spool of 4 conductor telephone wire that might work well enough.
What I'm really looking for is how to setup the pan/tilt using steppers. I've seen a few using servos, might be able to use something from there, but would like to find something more stepper specific.