Sensing Hot and Cold with Weekend Projects

Sensing Hot and Cold with Weekend Projects


Hot/Cold LEDs uses little more than an ultrasonic distance sensor, an Arduino, and some common components to build a basic circuit. We then use software loaded onto the Arduino to explore three different experiments with the same circuit: a proximity program that glows “hot” the closer you get to the sensor, a motion-based game, and a distance trigger. Watch the video below to see each of these software-powered projects in action. Circuits really can be this easy – and fun!

WNpxmMNJpItVcwSNAll year long we’ve been building up a repository of beginner-friendly electronics projects over at Weekend Projects, exploring everything from battery-less and battery-powered transmission to making our own bass guitar and a powered amp to hear it on. Hot/Cold LEDs joins our Arduino-based projects, which have also included a touchless 3D interface made from everyday materials and a homemade data logger, among other exciting projects.

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See all of the Weekend Projects posts

7 thoughts on “Sensing Hot and Cold with Weekend Projects

  1. Sensing Hot and Cold | A Maker's Dream Factory says:

    […] is the weekend project of maker.They called it Hot and Cold .It used little more than an ultrasonic distance sensor, an […]

  2. Sensing Hot and Cold using Arduino / Cooking Hacks Blog says:

    […] Via: DFRobot, Source: Make […]

  3. Bill Q says:

    Well done! Very clear explanation.

  4. says:

    where is the data for system…the syntax..? LINK?

  5. Alex Contreras says:

    I was wondering where the file is at?

  6. SM2705 – Creative Media Studio – Yannes SZE says:

    […] comes from: // define pins int SensorPin=7; int ALedPin=5; int ALedPin2=4; int BLedPin=6; int distance; […]

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I'm an artist & maker. A lifelong biblioholic, and advocate for all-things geekathon. Home is Long Island City, Queens, which I consider the greatest place on Earth. 5-year former Resident of Flux Factory, co-organizer for World Maker Faire (NYC), and blogger all over the net. Howdy!

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