8 open source boards using the MCP23017_SO
Real designs built with the MCP23017_SO, 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.
STM32Ferris
pierrechevalier83
208.8 × 86.8 mm102 parts2LSHL-2.11.3k
AVR/ArduinoUrsa minor keyboard
markstory
298.8 × 122.1 mm134 parts2LCC-BY-NC-4.023
RP2040/RP2350ElementWing
jamiejcole
321.5 × 233.4 mm188 parts2LNo license11
RP2040/RP2350Krunchboard
krunchiekrunch
427.6 × 139.1 mm200 parts2LCustom license2
ESP32PCB Watersysteem
Vertical-Farming-IB3
89.3 × 100 mm88 parts2LNo license2
Equinox-V1
ishantmahatopro
464.5 × 129.1 mm246 parts2LNo license0
PICGPSDO
dewayne57
203.2 × 152.4 mm157 parts2LApache-2.00
ESP8266MB02A2
GOS2022
130 × 105 mm96 parts2LMIT0
The MCP23017_SO in open source designs
The gallery holds 8 open source boards using the MCP23017_SO from 8 GitHub repositories; a typical one measures about 253.8 × 125.6 mm and carries around 146 components.
100% are two-layer designs, the rest use four layers or more, and 25% carry an open source license.
The most starred is Ferris by pierrechevalier83.
Parts used alongside the MCP23017_SO
Microcontrollers on boards using the MCP23017_SO
What boards using the MCP23017_SO are built for
MCP23017_SO: common questions
Where can I find a MCP23017_SO reference design?
Each of the 8 boards on this page is a real design using the MCP23017_SO. 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_SO use?
Most are built on RP2040/RP2350 (2), AVR/Arduino (1), ESP32 (1) and ESP8266 (1).
How big is a typical board using the MCP23017_SO?
The median is 253.8 × 125.6 mm, and 100% are two-layer designs.
What is the most popular open source board using the MCP23017_SO?
By GitHub stars, Ferris by pierrechevalier83, with 1,271 stars.
Can I simulate one of these boards using the MCP23017_SO 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.