DIY Seven Segment LED Clock Project

Check out this neat seven segment LED clock project using a variety of Adafruit components.

I just finished making a clock for my work area using a 7 segment display, RTC (real time clock) and the RTC library.  The nice thing about using this RTC is that it has a backup battery so if you lose power, it still maintains the time.

Fairly easy setup.  Both the RTC and the 7 segment display use 12c to communicate with the Arduino.  Because they have different addresses this is ok.  Adafruit has this handy chart of a lot of sensors and things and what their addresses are.    The 7 segment display I used has an address of 0×70 and that is not yet on the chart, but can be found in the library RTClib.

Used in this project are the Adafruit 0.56″ 4-Digit 7-Segment Display w/I2C Backpack, DS1307 Real Time Clock breakout board kit, and Adafruit Perma-Proto Half-sized Breadboard PCB.


Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 38,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 11/15/2024 Featuring Adafruit bq25185 USB / DC / Solar Charger with 3.3V Buck Board! (Video)

Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: A New Arduino MicroPython Package Manager, How-Tos and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

Adafruit IoT Monthly — The 2024 Recap Issue!

Maker Business – Adafruit Daily — Apple to build another chip at TSMC Arizona

Electronics – Adafruit Daily — SMT Tip – Stop moving around!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !


No Comments

No comments yet.

Sorry, the comment form is closed at this time.