49 open source boards using the MCP73831T-2ACI/OT
Real designs built with the MCP73831T-2ACI/OT, 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.
ESP32Esp rust board
esp-rs
22.9 × 63.5 mm48 parts2LNo license647
Open smartwatch light
Open-Smartwatch
36.1 × 36.1 mm51 parts4LGPL-3.0246
Open smartwatch gps
45 × 41 mm67 parts4LGPL-3.0241
ESP32Plantpal
teapotlaboratories
38.4 × 128.5 mm109 parts4LMIT97
Feather rak3172
51 × 23.1 mm44 parts2LMIT42
ESP32Badge2017
cryptovillage
95.2 × 154.5 mm129 parts2LNo license31
ESP32Electronics-Design-Exploiteers-Hacker-Pager
exploiteers
108.5 × 79 mm181 parts4LCERN-OHL-S-2.026
NXPVindor
ftrias
264 × 34 mm90 parts2LCustom license17
Dc25 spqr badge
netik
152.7 × 76.7 mm109 parts2LApache-2.011
Tympan Rev C Hardware
Tympan
38.5 × 97.6 mm78 parts4LMIT7
Microchip SAMDropkick
rrainey
44.5 × 50.8 mm45 parts2LMIT7
Microchip SAMBlinky Bowtie
joshajohnson
142.7 × 72 mm95 parts2LGPL-3.05
ESP32DC-34-Badge
Cyber-Professionals-Enthusiast-Club
145.2 × 203.4 mm87 parts2LNo license3
STM32Dalws
anhldptit2610
64 × 43 mm72 parts4LMIT2
ESP32Capsicum
hutscape
70 × 55 mm61 parts2LNo license2
ESP32Esp32s3-plant monitor
MuffinByteLabs
62.5 × 44.5 mm51 parts4LCERN-OHL-P-2.02
Caliper mod
RasmusKoit
25.5 × 70.6 mm12 parts2LNo license2- schematic only · 40 partsESP32
Moto Audio
bacnbit
40 partsNo license2 
RP2040/RP2350Auth75
Lumethra
326.7 × 132.3 mm208 parts2LNo license1
ESP32Security-Alarm-Panel
Matyas604
100 × 73.9 mm113 parts2LGPL-3.01
CADPad
175.4 × 142.7 mm97 parts2LNo license1
STM32Drone
ifahmy
25.6 × 29.5 mm86 parts4LNo license1
RISC-VNodi
feboyfierlyan
42 × 58 mm43 parts2LCustom license1
STM32ANC Helmet - main board (left earcup)
baba2712
60 × 50 mm139 parts4LMIT0
ESP32Poket
kaorii-ako
80 × 54 mm100 parts4LMIT0
ESP32NeuralCard
Brillar0101
85.6 × 54 mm66 parts2LCERN-OHL-P-2.00
ESP32Race tracker
jonaschramm
56.1 × 65.5 mm49 parts4LNo license0
STM32Flight data recorder
alexdortiz
57 × 27 mm47 parts4LMIT0
STM32Device1
akularya6-del
15 × 31 mm38 parts4LNo license0
STM32PulseWatch
abendezu10
40 × 30 mm33 parts4LNo license0
Teapotlabs BWLR1E Programmer
36.8 × 90.9 mm42 parts2LMIT35
Mist Maker
Dav1dyang
50.8 × 26.7 mm37 parts2LMIT24
ESP32USlime PCB Pack
ReSummit
25 × 22.6 mm30 parts2LGPL-3.04
ESP32DC-34-Badge panel
460.9 × 228.8 mm87 parts2LNo license3
STM32HANDS-EMG-BOARD
blakep7
80 × 54 mm113 parts4LNo license1
RP2040/RP2350MSA
aezrapour
30.5 × 138 mm61 parts2LMIT0
The MCP73831T-2ACI/OT in open source designs
The gallery holds 49 open source boards using the MCP73831T-2ACI/OT from 35 GitHub repositories; a typical one measures about 43.2 × 43.8 mm and carries around 49 components.
54% use four copper layers or more, and 45% carry an open source license.
The most starred is Esp rust board by esp-rs.
Parts used alongside the MCP73831T-2ACI/OT
Microcontrollers on boards using the MCP73831T-2ACI/OT
What boards using the MCP73831T-2ACI/OT are built for
MCP73831T-2ACI/OT: common questions
Where can I find a MCP73831T-2ACI/OT reference design?
Each of the 49 boards on this page is a real design using the MCP73831T-2ACI/OT. 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 MCP73831T-2ACI/OT?
The AP2112K-3.3TRG1, USBLC6-2SC6, CH340E, DW01A and ESP32-S3-WROOM-1-N8 appear in the most repositories here.
Which microcontrollers do boards using the MCP73831T-2ACI/OT use?
Most are built on STM32 (18), ESP32 (15), RP2040/RP2350 (3) and Microchip SAM (2).
How big is a typical board using the MCP73831T-2ACI/OT?
The median is 43.2 × 43.8 mm, and 46% are two-layer designs.
What is the most popular open source board using the MCP73831T-2ACI/OT?
By GitHub stars, Esp rust board by esp-rs, with 647 stars.
Can I simulate one of these boards using the MCP73831T-2ACI/OT 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.