2 open source boards using the Slotmaker
Real designs built with the Slotmaker, 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.
RP2040/RP2350Mega IIe
baldengineer
163 × 174.4 mm307 parts4LMIT33
IO Prototype (aka Slot)
94.8 × 64.6 mm37 parts2LMIT33
The Slotmaker in open source designs
The gallery holds 2 open source boards using the Slotmaker from 1 GitHub repository; a typical one measures about 128.9 × 119.5 mm and carries around 172 components.
50% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is Mega IIe by baldengineer.
Microcontrollers on boards using the Slotmaker
Slotmaker: common questions
Where can I find a Slotmaker reference design?
Each of the 2 boards on this page is a real design using the Slotmaker. 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 Slotmaker use?
Most are built on RP2040/RP2350 (1).
How big is a typical board using the Slotmaker?
The median is 128.9 × 119.5 mm, and 50% are two-layer designs.
What is the most popular open source board using the Slotmaker?
By GitHub stars, Mega IIe by baldengineer, with 33 stars.
Can I simulate one of these boards using the Slotmaker 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.