The circuit is really simple, perfect for beginners. It’s a good idea to do a dry-run of the circuit assembly first to test everything works before assembly on the rocket. You only need to connect 3 alligator clips:

  • Red goes to Vout
  • Black goes to Gnd
  • White goes to A7

For a permanent installation, a USB cable and 5V supply are fine.

If you’re using a battery pack or LiPo battery, plug it into the black JST connector of the Circuit Playground Express, opposite the microUSB connector. If you need more advice on what battery to choose, check out this guide.

For a kid-friendly and mobile option, the 3xAA battery pack would be great.

Angled shot of 3 x AA battery holder with on/off switch, JST, and belt clip.
This battery holder connects 3 AA batteries together in series for powering all kinds of projects. We spec'd these out because the box is compact, and 3 AA's add up to about...
$2.95
In Stock
If you're using a Lithium Polymer battery, it's a good idea for an adult to do this step - they don't react kindly if short circuited! 

If you'd like to permanently mount the project with wall power, this supply may work well.

5V 2.5A Switching Power Supply with 20AWG MicroUSB Cable
Our all-in-one 5V 2.5 Amp + MicroUSB cable power adapter is the perfect choice for powering single-board computers like Raspberry Pi, BeagleBone, or anything else that's...
$8.25
In Stock

This guide was first published on Mar 04, 2019. It was last updated on Mar 04, 2019.

This page (Circuit Diagram) was last updated on Jul 23, 2022.

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