Arduino Countdown Timer Project Kit - TM1637 4-Digit Display
59 Timer with TM1637 4-Digit Display
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine setting a countdown for your study session, cooking, or workout, and hearing a buzzer when time's up - all on a bright 4-digit display that you programmed yourself. This kit turns a breadboard and an Arduino Uno into a fully functional countdown timer, handling minutes and seconds with precise button controls. It's a plug-and-play introduction to data visualization, perfect for those taking their first step into electronics.
What You'll Build
You'll assemble a countdown timer that shows 99 minutes 59 seconds on a TM1637 4-digit 7-segment display. Two tactile buttons let you set the exact minutes, start the countdown, and reset it. When the timer hits 00:00, an active buzzer alerts you - a real-world tool you can use every day for timed activities.
What You'll Learn
- How to interface a TM1637 4-digit display with Arduino and display numbers precisely
- Techniques for reading button presses and debouncing inputs for reliable user control
- Logic to manage countdown timing using millis() without blocking other code
- Integrating an active buzzer to sound an alarm at the exact countdown end
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| 4-digit TM1637 | 1 |
| Tactile Button | 2 |
| Active Buzzer | 1 |
| 10k? Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 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
Perfect for students in CBSE Class 11-12 starting electronics, B.Tech ECE/EEE first-year mini-projects, or ATL Tinkering Lab students exploring timer applications. Also great for young makers age 8-15 building their first interactive device, parents introducing STEM at home, and anyone who wants a practical introduction to Arduino and data displays.
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?
Just scan the QR code on the box to access the AI companion - it knows every step of this countdown timer project and can guide you through wiring, code, or troubleshooting via chat. You can also reach us on WhatsApp for human help.
Can I use the timer without a laptop once programmed?
Yes! Once you upload the code to the Arduino Uno from your computer, the timer runs independently on a 9V battery. You can take it anywhere.
What if I want to set a different countdown time like 5 minutes?
The two buttons allow you to increment or decrement the minutes before starting. The code is designed to easily modify the maximum time range if needed.
Is this kit suitable for a complete beginner with no coding experience?
Absolutely. The pre-written code and step-by-step AI companion explain each line, making it a fun first project for ages 8 and up.
TM1637 4-digit display shows countdown from 99:59 to 00:00. Button sets minutes and starts timer.
What's in this kit
- Arduino Uno R3
- 4-digit TM1637
- Tactile Button x2
- Active Buzzer
- 10k? Resistors x5
- 400-pt Breadboard
- M-M Wires x20
- 9V Battery Snap
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
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