8 open source boards using the DS3231MZ
Real designs built with the DS3231MZ, 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.
Open smartwatch light
Open-Smartwatch
36.1 × 36.1 mm51 parts4LGPL-3.0246
Open smartwatch gps
45 × 41 mm67 parts4LGPL-3.0241
AVR/ArduinoPlayground 68030 Mk I
thorpej
259.9 × 154.9 mm227 parts6LNo license15
RPi-Hat-Thermocouple
mikelawrence
65 × 56 mm40 parts2LMIT9
Raspberry PiGranit
laenzlinger
92 × 99.5 mm102 parts4LCERN-OHL-P-2.02
PICVFD Clock
drewsum
200 × 50 mm458 parts2LNo license1
AVR/ArduinoControlBoard rev05a
plertvilai
44.5 × 57.8 mm64 parts2LMIT7
AVR/ArduinoUnrouted
44.5 × 57.8 mm63 parts2LMIT7
The DS3231MZ in open source designs
The gallery holds 8 open source boards using the DS3231MZ from 7 GitHub repositories; a typical one measures about 55 × 56.9 mm and carries around 66 components.
50% are two-layer designs, the rest use four layers or more, and 75% carry an open source license.
The most starred is Open smartwatch light by Open-Smartwatch.
Parts used alongside the DS3231MZ
Microcontrollers on boards using the DS3231MZ
What boards using the DS3231MZ are built for
DS3231MZ: common questions
Where can I find a DS3231MZ reference design?
Each of the 8 boards on this page is a real design using the DS3231MZ. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the DS3231MZ?
The BMA400, CH340E, GC9A01_IPS_display, MCP73831T-2ACI_OT and TPS2115A appear in the most repositories here.
Which microcontrollers do boards using the DS3231MZ use?
Most are built on AVR/Arduino (3), PIC (1) and Raspberry Pi (1).
How big is a typical board using the DS3231MZ?
The median is 55 × 56.9 mm, and 50% are two-layer designs.
What is the most popular open source board using the DS3231MZ?
By GitHub stars, Open smartwatch light by Open-Smartwatch, with 246 stars.
Can I simulate one of these boards using the DS3231MZ 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.