How to Stop, Reverse & Home Stepper Motors with Limit Switches
In this Arduino stepper motor tutorial, I’ll show you how to use limit switches with Arduino to control the boundaries of your stepper motors—perfect for automating sliding camera rigs, CNC machines, and any other project that needs precise start and stop points.
Here’s what I’ll cover:
What limit switches are and how they work
How to wire them to an Arduino Uno
Three step-by-step code examples:
1. Stop the stepper motor when a limit switch is triggered
2. Reverse the stepper motor’s direction when it hits a limit switch (like a camera slider)
3. Home the stepper motor at startup, so it always starts in the same position
This Arduino tutorial is great for beginners and anyone looking to build reliable, automated projects with stepper motors.
🔗 Full Tutorial & Wiring Diagrams: https://racheldebarros.com/using-limi...
🔗 NEMA 17 Stepper Motor with Arduino - Complete Guide: https://racheldebarros.com/control-ne...
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🛒 BUILD Your Own Stepper Motor with Limit Switches Arduino Project
Arduino Uno: https://amzn.to/3Ylh2fg
NEMA 17 Stepper Motor: https://amzn.to/4kdFRUB
A4988 Stepper Motor Driver: https://amzn.to/4h1QiYC
Limit Switches: https://amzn.to/45k76Ib
Capacitor: https://amzn.to/3EUYNY6
In-line Wire Connectors: https://amzn.to/4jvIijR
Breadboard: https://amzn.to/3AaO3CR
Jumper Wires: https://amzn.to/4e5CLNU
12V Power Supply: https://amzn.to/3QCilTw
Female DC Jack Adapter: https://amzn.to/3DlVGaX
🎬 VIDEO CHAPTERS: How to Use Limit Switches with Stepper Motors
0:00 Welcome
0:08 Why do you need a limit switch?
1:31 Limit Switch Pinout
2:45 How to Wire Limit Switches to Arduino
4:01 Code 1: Stop a Stepper Motor with a Limit Switch
9:32 Code 2: Change Stepper Motor Direction with a Limit Switch
16:36 Code 3: Home a Stepper Motor with a Limit Switch
20:22 Get Wiring Diagrams on my Website
20:38 Join my Newsletter & Mentorship Community!
💬 Have any questions or want to share your own experiences, tips and advice about how to use a limit switch with a stepper motor and Arduino? Drop a comment below – I love hearing from you!
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#arduino #steppermotor #limitswitch #arduinotutorial #arduinoprogramming #arduinocode #arduinoproject #learnarduino