Inside [Klaus]’ device is an Arduino Uno, an HC-SR04 ultrasonic distance sensor, and an Adafruit Wave Shield. Originally, this parking/distance sensor used a small TFT to display the distance to ...

In-display fingerprint sensors soon evolved to use faster and more reliable ultrasonic systems. However, sensors embedded in LCD screens will not use this technology, and may suffer from the same ...

They rebuild one of the most iconic components for an electronics tinkering beginner — an ultrasonic distance sensor, and what’s fun is, it stays fully functional after the rebuild!