3 open source boards using the MCP23017-E/SS
Real designs built with the MCP23017-E/SS, 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.
ESP32Eumesmo 24V 16xIn/16xOut/1-Wire Module
thermseekr
128 × 67.8 mm320 parts4LCC-BY-NC-4.06
ESP32Wooden Clock - main board
tibm
110 × 110 mm183 parts4LNo license1- schematic only · 48 parts
AMBIENT
Sancte3D
48 partsNo license1
The MCP23017-E/SS in open source designs
The gallery holds 3 open source boards using the MCP23017-E/SS from 3 GitHub repositories; a typical one measures about 119 × 88.9 mm and carries around 183 components.
100% use four copper layers or more, and 0% carry an open source license.
The most starred is Eumesmo 24V 16xIn/16xOut/1-Wire Module by thermseekr.
Microcontrollers on boards using the MCP23017-E/SS
What boards using the MCP23017-E/SS are built for
MCP23017-E/SS: common questions
Where can I find a MCP23017-E/SS reference design?
Each of the 3 boards on this page is a real design using the MCP23017-E/SS. 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 MCP23017-E/SS use?
Most are built on ESP32 (2).
How big is a typical board using the MCP23017-E/SS?
The median is 119 × 88.9 mm, and 0% are two-layer designs.
What is the most popular open source board using the MCP23017-E/SS?
By GitHub stars, Eumesmo 24V 16xIn/16xOut/1-Wire Module by thermseekr, with 6 stars.
Can I simulate one of these boards using the MCP23017-E/SS 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.