Using a 555 timer in astable mode to control speed and another in bistable mode to control the direction of a stepper motor driver by a STEP/DIR stepper motor driver.
A 5-volt power supply(Conversely, you can also use a voltage regulator with 5-volt output such as an LC805CV)
A 1kΩ resistor
2 10kΩ resistors
3 LEDs(Optional)
3 330Ω resistors(Optional, for the LEDs)
A capacitor(0.3uF to 10uF, try experimenting with different capacitors in this range. Capacitors above this range will cause the stepper motor to move very slowly and ones below the range will not allow the motor to move at all. Make sure the capacitors are rated for voltages above 10 volts.)
A 100kΩ potentiometer
2 push-buttons(normally open ones)
A lot of male to male jumper wires
2
Start by Plugging on the A4988 Motor Driver on the Breadboard
After plugging on the motor driver, connect the VDD(or VCC) pin to +5vols, GND to, obviously GND and, VMOT to 12 volts. Don't forget to connect the SLP and RST pins together! I used a small jumper for that.
3
Get Help From the Circuit Schematic
Please note:- For the IC(1), the pin6 needs to be connected to pin 2 of the chip.
Please move to the next step before starting making the circuit.