4 open source boards using the 74HC238
Real designs built with the 74HC238, 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.
Raspberry PiBmacro Base V2
KipJM
182.6 × 130.9 mm133 parts2LCERN-OHL-W-2.024
AVR/ArduinoBzzt Keyboard Controller Board
SteveCooling
166 × 70 mm71 parts2LMIT8
ESP32Coax-Switch-Controller
custom-ds
118 × 83 mm129 parts2LGPL-3.00
PICNixie Clock
drewsum
200 × 50 mm266 parts2LNo license0
The 74HC238 in open source designs
The gallery holds 4 open source boards using the 74HC238 from 4 GitHub repositories; a typical one measures about 174.3 × 76.5 mm and carries around 131 components.
100% are two-layer designs, the rest use four layers or more, and 75% carry an open source license.
The most starred is Bmacro Base V2 by KipJM.
Microcontrollers on boards using the 74HC238
What boards using the 74HC238 are built for
74HC238: common questions
Where can I find a 74HC238 reference design?
Each of the 4 boards on this page is a real design using the 74HC238. 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 74HC238 use?
Most are built on AVR/Arduino (1), ESP32 (1), PIC (1) and Raspberry Pi (1).
How big is a typical board using the 74HC238?
The median is 174.3 × 76.5 mm, and 100% are two-layer designs.
What is the most popular open source board using the 74HC238?
By GitHub stars, Bmacro Base V2 by KipJM, with 24 stars.
Can I simulate one of these boards using the 74HC238 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.