10 open source boards using the 16550
Real designs built with the 16550, 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.
We816
danwerner21
360.1 × 141.4 mm128 parts2LNo license32
ISA DualUARTParport
hkzlab
176.5 × 90.2 mm69 parts2LCC-BY-NC-4.018
68k dev
maded2
190.5 × 158.4 mm81 parts2LApache-2.04
Mainboard
mianderson2469
101.4 × 137.7 mm33 parts2LNo license3
Amix 68k (r0)
SmallRobot2000
333.4 × 149.9 mm169 parts4LNo license1
RP2040/RP2350We816-mark2
360.1 × 141.4 mm128 parts2LNo license1
Amix 68k(r1)
333.4 × 149.9 mm169 parts4LNo license1
Amix 68k r2
333.4 × 149.9 mm169 parts4LNo license1
UART Unit
oberrow
63.8 × 77.6 mm13 parts2LMIT1
Amix 68k r2 (T1)
333.4 × 149.9 mm169 parts4LNo license1
The 16550 in open source designs
The gallery holds 10 open source boards using the 16550 from 7 GitHub repositories; a typical one measures about 333.4 × 145.6 mm and carries around 128 components.
60% are two-layer designs, the rest use four layers or more, and 20% carry an open source license.
The most starred is We816 by danwerner21.
Parts used alongside the 16550
Microcontrollers on boards using the 16550
What boards using the 16550 are built for
16550: common questions
Where can I find a 16550 reference design?
Each of the 10 boards on this page is a real design using the 16550. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the 16550?
The 74LS244, 74LS245, GAL16V8, 27C256 and 27C512 appear in the most repositories here.
Which microcontrollers do boards using the 16550 use?
Most are built on RP2040/RP2350 (1).
How big is a typical board using the 16550?
The median is 333.4 × 145.6 mm, and 60% are two-layer designs.
What is the most popular open source board using the 16550?
By GitHub stars, We816 by danwerner21, with 32 stars.
Can I simulate one of these boards using the 16550 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.