Touch Sensitive Switch Kit
Light an LED with a Simple Touch - The Touch Sensitive Switch Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Touch two wires and watch an LED glow - your skin conducts a tiny current, and the transistor amplifier magnifies it to light the LED. It feels like magic, but it's pure electronics at play. This kit turns a simple breadboard into a touch-activated switch, giving young builders their first thrill of controlling a circuit with nothing but a fingertip.
What You'll Build
A touch-sensitive switch that responds to skin contact. Two exposed wires become touch pads; when you place a finger across them, the circuit closes through your body, the BC547 transistor amplifies the signal, and the LED shines brightly. It works with any finger, even through thin cloth, and demonstrates how everyday materials (including you!) can complete a circuit.
What You'll Learn
- How human skin conducts a tiny current - enough to trigger an amplifier
- How a transistor acts as a current amplifier, turning a weak touch signal into bright light
- The basics of breadboard prototyping and how components connect without soldering
- The role of resistors in protecting LEDs and setting transistor sensitivity
Kit Contents
| Component | Quantity |
|---|---|
| BC547 Transistor | 2 |
| LED Assorted (red, green, yellow) | 3 |
| 1M? Resistor | 3 |
| 100k? Resistor | 3 |
| Half Breadboard | 1 |
| 9V Battery Snap | 1 |
| 9V Battery | 1 |
| Male-Male Jumper Wires | 10 |
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
Curious young minds aged 6-8 who want to see electronics come alive at their fingertips. Equally useful for parents introducing STEM at home, educators running CBSE Class 5-8 science activities, ATL Tinkering Labs, and summer science camps across India. No prior experience needed - just a sense of wonder.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project - 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?
Scan the QR code on the box to chat with the AI companion built for this kit. If you need a human touch, our WhatsApp support is just a message away.
Is a 9V battery safe for a 6-year-old?
Absolutely. The circuit operates on a single 9V battery with very low current. The breadboard requires no soldering, and all connections are push-fit. Adult supervision is recommended for first-time builders.
Can we reuse the parts for other projects?
Yes. The breadboard, transistors, resistors, and LEDs are reusable components. After the touch switch, you can experiment with other beginner circuits - the kit is a springboard for endless tinkering.
What will my child gain from this kit?
A hands-on understanding that their body can conduct electricity, how a tiny signal can be amplified, and confidence in building a real circuit from scratch. It's the first step toward thinking like an inventor.
Touch two wires and the LED lights up - skin conducts enough current to trigger a transistor amplifier.
What's in this kit
- BC547 Transistors x2
- LED Assorted x3
- 1M? Resistors x3
- 100k? Resistors x3
- Half Breadboard
- 9V Battery Snap
- 9V Battery
- M-M Wires x10
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 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