2 open source boards using the ULN2003A_C

Real designs built with the ULN2003A_C, 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.

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The ULN2003A_C in open source designs

The gallery holds 2 open source boards using the ULN2003A_C from 2 GitHub repositories; a typical one measures about 100 × 100 mm and carries around 59 components.

100% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.

The most starred is ModuleDriver by nintando64.

Parts used alongside the ULN2003A_C

What boards using the ULN2003A_C are built for

ULN2003A_C: common questions

Where can I find a ULN2003A_C reference design?

Each of the 2 boards on this page is a real design using the ULN2003A_C. 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 ULN2003A_C?

The INA219 Breakout Narrow (purple), INA219 Breakout Wide (blue), INA219BxD, Mega2560Shield and RS485Module appear in the most repositories here.

How big is a typical board using the ULN2003A_C?

The median is 100 × 100 mm, and 100% are two-layer designs.

What is the most popular open source board using the ULN2003A_C?

By GitHub stars, ModuleDriver by nintando64, with 0 stars.

Can I simulate one of these boards using the ULN2003A_C 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.