Goal:

Setup a pre-existing useless machine to a counter circuit then add and tune setup so the motion increments at one second intervals. 

Challenge:
Avoid using timing circuits and complex logic. The tuning of motions create the time interval. Think of the tic-toc motions in an analog clock.

Step 1 ( Complete): Build 2-display counter circuit with 4026 counters.

Step 2 (Complete): Hack connections to the pre-existing useless machine. 

• Ground is made common between counter circuit and useless machine.
• Connect wire to the normally open switch lead that depresses when the machines arm retracts back into the box. The switching of this creates the clock signal that increments the counter circuit as the "tic" of the motion.
• Connect wires to either side of the existing motor that drives the machine. These connections will drive a secondary motor to create the "toc" of the motion.

Step 3 (begun): Setup a secondary motor and arm so that the useless machine toggle switch is flipped back without human intervention. The "toc" of the motion.

The 3V DC motor is tied into the useless machine but the arm and gear reduction has not been built.

Currently, the "toc" motion is driven by human intervention.

Step 4 (pending): Tuning the circuit so the counter increments at 1 second intervals. Currently, I flip the switch in the "toc" motion which leaves plenty of room for error and a machine that is still useless.

The exact plan for tuning is unclear but a few ideas will be tried.

• Change the arm dimensions for quicker or longer intervals of motion.
• Vary the motor voltage to see if RPM is affected.

Timing circuits that would create a PWM for the motor is being avoided per the goal and challenge of this project