Arduino Uno wiring diagrams for the classroom

Printable wiring references for the sensors used across the Robots course category. Each diagram is laid out for a standard Arduino Uno with the breadboard layout on one side and the corresponding block or JavaScript snippet on the other, so students can check their physical wiring against their code in one glance.

We've covered the core sensor set used in our introductory Robots units: ultrasonic distance, line-following IR pairs, a basic servo, and an RGB LED, along with a couple of the more fiddly ones like the tilt switch and the photoresistor, which trip students up most often when pins are mismatched.

Diagrams are available as printable PDFs from the teacher dashboard, sized to laminate and clip to a classroom kit box. We've also added a colour-coded pin key that matches the colour scheme already used in the block editor, so the visual language is consistent from the screen to the bench.

If there's a sensor from your kit that isn't covered yet, let us know — we're adding new diagrams as classroom requests come in.

← Back to the blog