Project kitBeginner
Visit all Voltomni productsPrecision digital clock (complete kit)
A big 7-segment clock that keeps time to a couple of minutes a year, even when unplugged. Every part in one order, checked and shipped together.
₹4,979
Inclusive of all taxes (GST). Shipping calculated at checkout.
In stock
Sourced for your order: ships in about 6 business days.
- Ships from
- Voltomni, Ahmedabad
- Sold by
- Voltomni
- Returns
- 7-day return on unused items in original packaging
- Invoice
- GST invoice; add your GSTIN at checkout to claim input tax credit
- Payment
- Secure transaction · UPI, cards, net banking
SKU: VK-MK-CLOCK
About this item
- The DS3231 is a temperature-compensated real-time clock that keeps accurate time on a coin cell when the power is off.
- The Arduino reads it over I2C and shows the time on a bright 4-digit 7-segment display; add buttons to set the time and an alarm on the buzzer.
- The complete kit is the whole parts list as a single item: we collect every part, check it and ship the set together, so nothing is missing when you sit down to build.
- Prefer to buy only some of the parts?
- The project page lists every part with its own price, and you can add just the ones you need.
What's in the kit
| Part | What it does | Qty |
|---|---|---|
| Arduino Nano compatible (CH340) | Controller | 1 |
| Adafruit DS3231 precision real-time clock | Precision real-time clock | 1 |
| Adafruit 0.56-inch 4-digit 7-segment display with I2C backpack | 4-digit display | 1 |
| Electronics fun kit with 830 breadboard | 830-point breadboard, jumper wires, LEDs, resistors, buttons and buzzer | 1 |
Guide and code
Build notes and the full parts list are on the project page
See the project and buy parts separately →Notes
- The clock needs a CR1220 coin cell to keep time without power (not included).
Product information
| Brand | Voltomni |
|---|---|
| Model / SKU | VK-MK-CLOCK |
| Item weight | 460 g |
| Package dimensions | 220 × 150 × 50 mm |
| HSN code | 9023 |
| Sold and shipped by | Voltomni, Ahmedabad, Gujarat |
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| Price | ₹4,979 | ₹5,099 | ₹5,369 | ₹5,599 |
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| Brand | Voltomni | Voltomni | Voltomni | Voltomni |
| Difficulty | Beginner | Intermediate | Intermediate | Intermediate |
| Build time | 1–2 hours | 2–3 hours | 3–4 hours | 2 hours |
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