6 open source boards using the MCP23S17
Real designs built with the MCP23S17, 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/ArduinoSuper Sixteen v1
matthewcieplak
111.3 × 106.4 mm141 parts2LNo license172
Gamegirl
davidperrenoud
65 × 100 mm88 parts2LNo license109
Kicad control board
100 × 110 mm97 parts2LNo license172
Ald solenoidControl
greyltc
40 × 89 mm35 parts4LCERN-OHL-1.20
NewMUX
40 × 89 mm33 parts4LCERN-OHL-1.20
AVR/ArduinoController
45.1 × 110 mm32 parts4LCERN-OHL-1.20
The MCP23S17 in open source designs
The gallery holds 6 open source boards using the MCP23S17 from 3 GitHub repositories; a typical one measures about 55 × 103.2 mm and carries around 62 components.
50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Super Sixteen v1 by matthewcieplak.
Microcontrollers on boards using the MCP23S17
What boards using the MCP23S17 are built for
MCP23S17: common questions
Where can I find a MCP23S17 reference design?
Each of the 6 boards on this page is a real design using the MCP23S17. 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 MCP23S17 use?
Most are built on AVR/Arduino (2).
How big is a typical board using the MCP23S17?
The median is 55 × 103.2 mm, and 50% are two-layer designs.
What is the most popular open source board using the MCP23S17?
By GitHub stars, Super Sixteen v1 by matthewcieplak, with 172 stars.
Can I simulate one of these boards using the MCP23S17 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.