Wiring the Components

Guide to wiring the stepper motors, servo, and Raspberry Pi.

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Wiring

Follow these steps to wire the components:

Item

Action

Connect the Stepper Motors: Connect the 28BYJ-48 stepper motors to the ULN2003 driver boards. Connect the IN1, IN2, IN3, and IN4 pins on the driver boards to GPIO pins on the Raspberry Pi. Connect the Servo Motor: Connect the servo motor to a PWM-capable GPIO pin on the Raspberry Pi. Connect the power and ground wires of the servo to the Raspberry Pi. Power the Raspberry Pi: Ensure your Raspberry Pi has a stable power supply.

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Pin Connections

Here are the pin connections for the components:

Component	Raspberry Pi Pin
Left Stepper, IN1	GPIO 14
Left Stepper, IN2	GPIO 15
Left Stepper, IN3	GPIO 18
Left Stepper, IN4	GPIO 23
Right Stepper, IN1	GPIO 24
Right Stepper, IN2	GPIO 25
Right Stepper, IN3	GPIO 08
Right Stepper, IN4	GPIO 07
Servo Signal	GPIO 01

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With the wiring done, we can now proceed to setting up the Raspberry Pi.

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