4 open source boards using the DS3231SN
Real designs built with the DS3231SN, 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.
AVR/ArduinoGpstracker
blemasle
79.3 × 59.2 mm65 parts2LMIT33
FPGAZYNQ Ruler
Stanlazy
88 × 23.4 mm217 parts4LLGPL-2.117- schematic only · 10 partsSTM32
Hip
8adam95
10 partsNo license2 
ESP32Exhaust mic
HasiKe
72 × 55 mm133 parts4LNo license0
The DS3231SN in open source designs
The gallery holds 4 open source boards using the DS3231SN from 4 GitHub repositories; a typical one measures about 79.3 × 55 mm and carries around 99 components.
67% use four copper layers or more, and 50% carry an open source license.
The most starred is Gpstracker by blemasle.
Microcontrollers on boards using the DS3231SN
What boards using the DS3231SN are built for
DS3231SN: common questions
Where can I find a DS3231SN reference design?
Each of the 4 boards on this page is a real design using the DS3231SN. 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 DS3231SN use?
Most are built on AVR/Arduino (1), ESP32 (1), FPGA (1) and STM32 (1).
How big is a typical board using the DS3231SN?
The median is 79.3 × 55 mm, and 33% are two-layer designs.
What is the most popular open source board using the DS3231SN?
By GitHub stars, Gpstracker by blemasle, with 33 stars.
Can I simulate one of these boards using the DS3231SN 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.