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It. Could. Work!
03/14/2015 at 13:36 • 0 commentsGot to work last night reviving this little arm. Removed the original circuit board, a nice piece of work.
Next, I set out and build a stepper motor driver using a 555 for clock, 74194 shift register, 7404 driver inverter, and TIP120s.
I then moved each joint independently, and woke the little guy up.