Tag: ultrasonic

Lucas Reed @ instructables.com has build a proximity alarm using Arduino and an ultrasonic sensor from Parallax. If a nearby object is approaching then the alarm will sound and an RGB LED will light up. He writes: An ultrasonic rangefinder and Arduino microcontroller will check for...

ManosM @ instructables.com has build a portable ultrasonic range meter based on ATMega328 mcu and LCD display. This device is a small, portable ultrasonic range meter using an ATMega328 microcontroller, an ultrasonic module and a 4x20 LCD for ranging distances in meters and...

This reference design is a simple ultrasonic atomizer that helps fight against respiratory diseases. Atomizer is like nebulizer, it is just that nebulizer takes time to deliver liquid to mist. However, both undergo almost the same process. This medical ultrasonic atomizer circuit is...

by cascologix.com: HC-SR04 ultrasonic sensor modules, also commonly called ping sensors, are practically a dime a dozen, with many Asia online retailers selling them in the $2 to $3 dollar range each. While possibly not intended for an end solution or product, these sensors offer a...

by electronics for everyone @ instructables.com: Today I hope to teach you all about ultrasonic sensors and hopefully by the end you'll have a nice little digital tape measure of your own to use as you please. This is my second version of this project so if you can get it as small...

by netzener @ instructables.com: When I started my career in control systems I was fascinated with the many different ways that machines could be interfaced to the environment they operated in. Limit switches (electrical and optical), encoders, resolvers, strain gauges,...