Staircase Night Light Automator Kit with Arduino Uno + LDR
Staircase Night Light Automator Kit with Arduino Uno + LDR
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Tired of climbing dark stairs or finding light switches in unlit corridors? This kit turns an ordinary LED strip into a responsive night light that brightens only when motion is detected under low ambient light. Itβs the perfect way to add safety and convenience to any home while diving into real-world sensor integration and MOSFET switching.
What You'll Build
You'll assemble a complete automatic lighting system that reads ambient darkness with two LDRs and triggers a PIR motion sensor. When itβs dark and someone walks by, the Arduino increases the LED strip brightness smoothly. Once the area is vacant, the light fades out, all without any manual switching. The circuit works on a 12V LED strip and uses a logic-level MOSFET to handle the current safely.
What You'll Learn
- How to interface LDRs with Arduino analog inputs and calibrate light thresholds
- Configuring the HC-SR501 PIR sensor to filter false triggers and set time delays
- Using an IRF540N MOSFET as a PWM dimmer for 12V LED strips
- Writing Arduino code that coordinates sensors, timing, and smooth LED fading
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| LDR | 2 |
| HC-SR501 PIR | 1 |
| IRF540N MOSFET | 1 |
| 10kΞ© Resistors | 5 |
| 100Ξ© Gate Resistor | 2 |
| 1N4007 Diode | 2 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 12V 1A Adapter | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Designed for intermediate-level makers aged 15β18, it aligns perfectly with CBSE Class 11β12 electronics projects and first-year B.Tech ECE/EEE lab work. Itβs also a great fit for ATL Tinkering Labs and Smart India Hackathon participants who need a pre-validated home automation module to prototype quickly.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project β accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Just scan the QR code on the box and ask the AI companion any question about wiring, code, or calibration. You can also reach our support team over WhatsApp for human help during Indian working hours.
Can I use the kit with a longer LED strip or a different voltage?
The included IRF540N MOSFET can handle up to 100V and 33A, but the 12V adapter is designed for the most common LED strips. If you switch to a different strip, consult the build companion for any adjustments to the gate resistor or protection diode.
Do I need to solder anything?
No soldering is required. All connections are made on the included breadboard with jumper wires, so you can prototype and modify the circuit without any permanent changes.
How can I make the light stay on longer before dimming?
The Arduino code includes a configurable delay. The AI companion shows you exactly which variable to change, and you can test different timings right on the breadboard.
Light sensor and PIR together auto-dim corridor LED strip at night when motion detected.
What's in this kit
- Arduino Uno R3
- LDR x2
- HC-SR501 PIR
- IRF540N MOSFET
- 10kΞ© Resistors x5
- 100Ξ© Gate Resistor x2
- 1N4007 Diode x2
- 400-pt Breadboard
- M-M Wires x20
- 12V 1A Adapter
Do you deliver across India?
Yes. We ship Staircase Night Light Automator Kit with Arduino Uno + LDR across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Orders ship in 1-5 days.
What payment options are available for Staircase Night Light Automator Kit with Arduino Uno + LDR?
We accept UPI, all major debit and credit cards, and Cash on Delivery (COD), available across India.
Built and shipped from Compoden, with COD and UPI available across India.
Other projects you can build
Shipping Information
- Prepaid Orders: βΉ75 for orders up to βΉ999, FREE shipping above βΉ999
- COD Orders: βΉ125 shipping + βΉ50 COD fee = βΉ175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items