Tag Archives: arduino

Controlling Multiple RGB LEDs with Smartphone via Bluetooth

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

Posted in Uncategorized | Tagged , , , , , | Leave a comment

Ultrasonic toggle switch

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

Posted in Uncategorized | Tagged , , , , | 2 Comments

Debugging Touchless Technology

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

Posted in Uncategorized | Tagged , , , | Leave a comment

Touchless Technology with ultrasonic distance sensors

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

Posted in Uncategorized | Tagged , , | 4 Comments

Pingo: Ultrasonic Distance Sensor Game in Development

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

Posted in Uncategorized | Tagged , , , , | Leave a comment

Ultrasonic Pinger Game, Part I

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

Posted in Uncategorized | Tagged , , , , | Leave a comment

Why fuzzy logic?

Fuzzy Thinking: The New Science of Fuzzy Logic I found this book at Goodwill over the summer and I’ve always wanted to know about fuzzy logic so I decided to read it. Since I do a lot of stuff with … Continue reading

Posted in Uncategorized | Tagged , , | Leave a comment