3 open source boards using the MPR121QR2
Real designs built with the MPR121QR2, 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.
ESP32OSCD Demo
tmjnijssen
94.6 × 94.6 mm76 parts4LCERN-OHL-P-2.03
Edge-AI-Badge Face
LyndLabs
78 × 78 mm4 parts2LNo license1
Kicad test redo w MPR121
maxsterl666
160 × 180 mm47 parts4LNo license0
The MPR121QR2 in open source designs
The gallery holds 3 open source boards using the MPR121QR2 from 3 GitHub repositories; a typical one measures about 94.6 × 94.6 mm and carries around 47 components.
67% use four copper layers or more, and 33% carry an open source license.
The most starred is OSCD Demo PCB by tmjnijssen.
Microcontrollers on boards using the MPR121QR2
What boards using the MPR121QR2 are built for
MPR121QR2: common questions
Where can I find a MPR121QR2 reference design?
Each of the 3 boards on this page is a real design using the MPR121QR2. 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 MPR121QR2 use?
Most are built on ESP32 (1).
How big is a typical board using the MPR121QR2?
The median is 94.6 × 94.6 mm, and 33% are two-layer designs.
What is the most popular open source board using the MPR121QR2?
By GitHub stars, OSCD Demo PCB by tmjnijssen, with 3 stars.
Can I simulate one of these boards using the MPR121QR2 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.