9 open source boards using the MS561101BA03-50
Real designs built with the MS561101BA03-50, 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.
PICAper-Oculus
ApotheoTech
147.4 × 90 mm557 parts16LGPL-3.032
AVR/ArduinoBATDATUNIT01
mlab-modules
136.2 × 85.9 mm206 parts2LGPL-3.05
STM32ProPrj Project Ignis 2026-06-03
Shourya-x
123.2 × 67.9 mm71 parts2LNo license3
ESP32OneroiV1
HomeOnDuna
50 × 75 mm160 parts4LNo license1
STM32Drone
ifahmy
25.6 × 29.5 mm86 parts4LNo license1
Picoballoon
macurs
51.3 × 20 mm25 parts2LNo license1
STM32Horizon
ChladpavPy
38.4 × 82.8 mm92 parts4LNo license0- schematic only · 58 partsSTM32
Drone v0
Prosjekt-gruppe
58 parts2LMIT5 
ESP32IrisV1
36.7 × 75 mm79 parts2LNo license1
The MS561101BA03-50 in open source designs
The gallery holds 9 open source boards using the MS561101BA03-50 from 8 GitHub repositories; a typical one measures about 50.6 × 75 mm and carries around 86 components.
56% are two-layer designs, the rest use four layers or more, and 33% carry an open source license.
The most starred is Aper-Oculus by ApotheoTech.
Parts used alongside the MS561101BA03-50
Microcontrollers on boards using the MS561101BA03-50
What boards using the MS561101BA03-50 are built for
MS561101BA03-50: common questions
Where can I find a MS561101BA03-50 reference design?
Each of the 9 boards on this page is a real design using the MS561101BA03-50. 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 MS561101BA03-50 use?
Most are built on STM32 (4), ESP32 (2), AVR/Arduino (1) and PIC (1).
How big is a typical board using the MS561101BA03-50?
The median is 50.6 × 75 mm, and 56% are two-layer designs.
What is the most popular open source board using the MS561101BA03-50?
By GitHub stars, Aper-Oculus by ApotheoTech, with 32 stars.
Can I simulate one of these boards using the MS561101BA03-50 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.