Here’s a roundup of some of our favorite projects that incorporate the use of LEDs. From simple holiday cards to the more elaborate Arduino lit LEDs, these awesome little lights are a great way to get started on your Hardware Hacking.
Earn the Sensor Hacker Skill by building a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level. Two wires placed in the soil pot form a variable resistor, whose resistance varies depending on soil moisture. This variable resistor is connected in a voltage divider configuration, and Arduino collects a voltage proportional to resistance between the 2 wires.
Electronic Toys combine classic themes with today’s technologies. With a basic knowledge of motors, batteries and circuits, you can create high-tech toys that do some pretty cool things. You can add electronics to an existing toy, or create one from scratch. This Brushbot solves a challenge for the Toy Maker Skill.
Solar power can be used to power all sorts of fun devices, like cars, fans, and even a cockroach robot. It only costs about $2.50 and 20 minutes of time to make a gadget that runs right off the sun’s rays. This project solves a challenge for the Solar Engineer Skill.