Arduino project · Motors and movement · Medium
Keypad Stepper Positions
Keys turn the stepper by 90 or 180 degrees in either direction.
What you will learn
- How a stepper turns by exact angles
- How keys select the move
- How a wait avoids repeat moves
How it works
Each key gives a turn command. The wait at the end stops the stepper from repeating the move while the key is held.
Try this next
- Add a home position key.
- Count the moves.
- Add an LCD that shows the total turn.
The simulator program and explanation on this page are original. The idea follows a classic Arduino project that students have built for years.
Parts: sensors and actuators (tap to show or hide)
Try the inputs (virtual sensors)
Pins (you can change them)
| Part | Arduino pin (change it here) | How to wire it |
|---|
Every wire, one by one
Red rail = 5 V from the Arduino 5V pin. Black rail = GND. The coloured wires carry signals. Match the wire colours on the drawing to this list.
| # | Colour | From (part and leg) | To |
|---|
Steps run from top to bottom, then start again. While the simulation runs, the active step is highlighted in green.
Quantities come from the parts you added. The store links open a search for that item on Robu.in, Amazon.in and ThinkRobotics, so you always see what is in stock today. Check the model, voltage and price before you order.
| # | Item | Qty | Search term | Buy / compare |
|---|
The PDF has the circuit sketch, pin table, every wire, sequence, full code, the parts list with store links, do’s and don’ts for each part, and the safety notes. The project file lets you come back and keep editing.
In the real world
A stepper turning a table
Each step command turns the pointer by a precise angle, like a turntable or a clock hand.
Tip: use the gold tab at the bottom of the circuit drawing to pull the real-world view up over the Arduino board. Your parts stay visible above it, so you can press a button and watch the real scene react.
- Stepper motor = the turning pointer