1 open source board using the XTL-4pin
Real designs built with the XTL-4pin, 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.
The XTL-4pin in open source designs
The gallery holds 1 open source boards using the XTL-4pin from 1 GitHub repository; a typical one measures about 124 × 38 mm and carries around 139 components.
0% carry an open source license.
The most starred is Proto1 by expeyes.
Microcontrollers on boards using the XTL-4pin
XTL-4pin: common questions
Where can I find a XTL-4pin reference design?
Each of the 1 boards on this page is a real design using the XTL-4pin. 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 XTL-4pin use?
Most are built on PIC (1).
How big is a typical board using the XTL-4pin?
The median is 124 × 38 mm.
What is the most popular open source board using the XTL-4pin?
By GitHub stars, Proto1 by expeyes, with 18 stars.
Can I simulate one of these boards using the XTL-4pin 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.