Every year for Hanukkah, you light a candle every night for 8 days. Often about halfway through the holiday though, you may find yourself losing count of the nights. You may also live in a space where you can't light a candle, like a dorm room or an apartment. This project helps you with all of these problems by making the menorah digital and keeping time with the internet.
Every day, the MagTag fetches the date and time, compares it to the start date of Hanukkah and updates the menorah graphic accordingly. It's also a low power project, taking advantage of deep sleep on the ESP32-S2, so you can keep it battery powered on your desk throughout the season.
The menorah graphic was designed by Noe Ruiz. Each flame on the candles is covered by a circle in the CircuitPython code. As the candles are "lit", the circles are made transparent to reveal the flames.
3D Printed Case
You can 3D print or purchase the Adafruit MagTag case from the shop. The case features a kick stand and space for a battery inside.
Page last edited December 18, 2025
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