Category Archives: ultrasonic distance sensor

Minimalist Mate Maker Keeps You Caffeinated

Americans love their coffee. The Brits adore their tea. In South America, the number one way to get through the day is with yerba mate, a tea made from the yerba plant. It is typically shared in a social setting, with one person preparing the beverage for everyone to enjoy. …read more

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Posted in arduino, Arduino Hacks, lifehacks, mate, tea, ultrasonic distance sensor, yerba mate | Leave a comment

Dual Sensor Echo Locator Gives High Accuracy at Low Cost

Infrared certainly has its uses, but if you’re trying to locate objects, ultrasonic detection is far superior. It’s contact-less, undetectable to the human ear, and it isn’t affected by smoke, dust, ambient light, or Silly String.

If you have one ultrasonic sensor and a microcontroller, you can detect plenty of useful things, like the water level in a rain barrel or the distance traveled by a tablet along a rail. If you have two sensors and a microcontroller, you can pinpoint any object within a defined range using trigonometry.

[lingib]’s dual sensor echo locator uses two HY-SRF05s, but the cheap …read more

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Posted in echolocation, HC-SR04, HY-SRF05, ultrasonic, ultrasonic distance sensor, ultrasonic transducer | Leave a comment