1 open source board using the W65C21SxP
Real designs built with the W65C21SxP, 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.
tkhshmsyThe W65C21SxP in open source designs
The gallery holds 1 open source boards using the W65C21SxP from 1 GitHub repository; a typical one measures about 95 × 100 mm and carries around 36 components.
100% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is Sbc6502a1 by tkhshmsy.
Microcontrollers on boards using the W65C21SxP
W65C21SxP: common questions
Where can I find a W65C21SxP reference design?
Each of the 1 boards on this page is a real design using the W65C21SxP. 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 W65C21SxP use?
Most are built on AVR/Arduino (1).
How big is a typical board using the W65C21SxP?
The median is 95 × 100 mm, and 100% are two-layer designs.
What is the most popular open source board using the W65C21SxP?
By GitHub stars, Sbc6502a1 by tkhshmsy, with 2 stars.
Can I simulate one of these boards using the W65C21SxP 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.