8 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 
ESP32Esp32 s3 dwm3000 uwb anchor with relay outputs
Takingo
160 × 100 mm322 parts4LNo license0
ESP32Exhaust mic
HasiKe
72 × 55 mm133 parts4LNo license0
Quantum mind uwb rtls anchor v3 0
220 × 140 mm193 parts4LNo license0
Quantum mind uwb rtls anchor v3 0 fr224 java25 test
220 × 140 mm193 parts4LNo license0
Quantum mind uwb rtls anchor v3 0 fr224 test
220 × 140 mm193 parts4LNo license0
The DS3231SN in open source designs
The gallery holds 8 open source boards using the DS3231SN from 5 GitHub repositories; a typical one measures about 160 × 100 mm and carries around 193 components.
86% use four copper layers or more, and 25% 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 8 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 ESP32 (2), AVR/Arduino (1), FPGA (1) and STM32 (1).
How big is a typical board using the DS3231SN?
The median is 160 × 100 mm, and 14% 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.