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Precision digital clock
BeginnerBuild time 1–2 hours· You'll learn: Arduino, I2C, Real-time clocks
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.
Complete kit
₹4,979
Every part below as one item: we collect, check and ship the whole set together, with one GST invoice. Ships in about 6 business days.
View complete kitParts only: available parts total
₹4,375
4 of 4 line items available now.
Electronics
| Part | Role | Qty | Unit | Line | Status |
|---|---|---|---|---|---|
| Arduino Nano compatible (CH340)Board | Controller | 1 | ₹270 | ₹270 | ships in about 6 business days |
| Adafruit DS3231 precision real-time clockModule | Precision real-time clock | 1 | ₹2,161 | ₹2,161 | ships in about 6 business days |
| Adafruit 0.56-inch 4-digit 7-segment display with I2C backpackModule | 4-digit display | 1 | ₹1,229 | ₹1,229 | ships in about 6 business days |
| Electronics fun kit with 830 breadboardKit | 830-point breadboard, jumper wires, LEDs, resistors, buttons and buzzer | 1 | ₹715 | ₹715 | ships in about 6 business days |
- The clock needs a CR1220 coin cell to keep time without power (not included).
Prices are final and follow what Indian distributors have in stock (refreshed nightly). Out-of-stock parts are not added to the cart.