I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

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 ...

Likely applications are button designs and proximity ... and as an Arduino-compatible shield. It can be used to add a capacitive-button user interface to Arduino projects. To apply for the MBR3 kit, ...

allowing the sensor to measure the distance and subsequently prompt the buzzer to emit the right note. Since the project uses pretty basic components, the Arduino code is equally basic ...