Tag Archives: arduino

Beyond the Blink: RGB LED multiple lighting effects with arduino, push button, and potentiometer

Posted on September 11, 2017 by

Ever want to do more with an LED than just blink? This circuit and source code demonstrates some creative possibilities for lighting effects with an RGB LED. CC has descriptive subtitles. Sorry for the poor phone video quality. Here’s a … Continue reading →

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Controlling Multiple RGB LEDs with Smartphone via Bluetooth

Posted on February 25, 2017 by

Many people have done projects similar to this where they use their smartphone to control an RGB LED. My project has some twists. First, I traded color variation for intensity variation. Second, I routed the Arduino PWM signal pins through … Continue reading →

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Ultrasonic toggle switch

Posted on June 1, 2014 by

This is an idea for using an ultrasonic distance sensor (aka ‘pinger’) as a toggle switch. I’ll show it first and then explain: As the hand approaches, the yellow light comes on to indicate that the switch is in aware … Continue reading →

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Debugging Touchless Technology

Posted on May 29, 2014 by

The comment that I added to the previous post was not the full solution to having a row of touchless buttons, but it set me on the way. A second pinger IS necessary to discriminate against anomalous readings. In the … Continue reading →

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Touchless Technology with ultrasonic distance sensors

Posted on May 27, 2014 by

The concept behind this circuit design is that you can press buttons without touching them. As your finger lowers to the tabletop, the yellow light will come on, indicating that you are on the correct approach. Farther down, the green … Continue reading →

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Pingo: Ultrasonic Distance Sensor Game in Development

Posted on May 18, 2014 by

This is the hardware for a game I’m developing that uses an ultrasonic distance sensor. The microcontroller (Arduino, natch) randomly generates distances and then commences a ‘random walk’ from Point A to B. You, the player, hold your hand above … Continue reading →

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Ultrasonic Pinger Game, Part I

Posted on May 3, 2014 by

I’m working on this idea for a game which involves an ultrasonic distance sensor. The set-up is shown above. As you can see, it uses an Arduino for the prototyping but the goal is to transfer the programming over to … Continue reading →

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