Arduino Automatic Stair Light — smart-home lighting you can actually show
This is a genuine smart-home idea, not a toy demo: LED strips or lamps built into a staircase that wake up as somebody approaches and go dark once they have passed. It saves energy, it stops people fumbling for a switch in the dark, and it looks expensive. Here it is scaled down to a row of step LEDs on a breadboard with an IR sensor at each end, so the whole behaviour is visible at a glance.
How the circuit works
- An IR obstacle sensor at each end of the staircase detects a person arriving.
- Whichever sensor triggers first tells the Arduino Uno the direction of travel.
- The Uno lights the step LEDs in sequence — bottom to top, or top to bottom to match the direction.
- After the walk-through delay expires, the LEDs switch off again in order, leaving the staircase dark.
What is on the board
- Arduino Uno R3 microcontroller board
- 2 × IR obstacle-detection sensor modules with adjustable range
- 6 × step LEDs with current-limiting resistors
- Solderless breadboard with full jumper wiring
- 9V battery with DC barrel connector and USB cable for power
Perfect for
- Smart-home and home-automation project submissions
- School and college working models on sensors and automation
- Final Year Projects on energy saving and occupancy detection
- Learning sequencing, timing and direction logic on Arduino
Why students buy their project from Arduino Corner
The IR sensors are already aligned and the sequence already tuned — the fiddly part is done. Come and see it running at the shop, or have it sent to you.
Visit us: Smart Home | Arduino Corner, Shaheen Market, DAV College Road, Rawalpindi. Same-day delivery across Rawalpindi and Islamabad, cash on delivery all over Pakistan.
