2 open source boards using the DS3231S
Real designs built with the DS3231S, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
ESP32DRM Watch v3
drfailov
62.7 × 44.5 mm68 parts2LGPL-3.091
AVR/ArduinoIO watch
zyyan20h
35 × 34.7 mm34 parts2LNo license4
The DS3231S in open source designs
The gallery holds 2 open source boards using the DS3231S from 2 GitHub repositories; a typical one measures about 48.9 × 39.6 mm and carries around 51 components.
100% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is DRM Watch v3 by drfailov.
Microcontrollers on boards using the DS3231S
What boards using the DS3231S are built for
DS3231S: common questions
Where can I find a DS3231S reference design?
Each of the 2 boards on this page is a real design using the DS3231S. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
Which microcontrollers do boards using the DS3231S use?
Most are built on AVR/Arduino (1) and ESP32 (1).
How big is a typical board using the DS3231S?
The median is 48.9 × 39.6 mm, and 100% are two-layer designs.
What is the most popular open source board using the DS3231S?
By GitHub stars, DRM Watch v3 by drfailov, with 91 stars.
Can I simulate one of these boards using the DS3231S before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.