Here is the diagram of my Arduino infrared close proximity sensor. As you can see, the core part of my experimental setup is an Arduino UNO, but other compatible microcontrollers can also be employed.

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 ...

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors.

Upon sensing an obstacle, it then sends a signal to the Arduino UNO ... from the ultrasonic sensor when you activate it with the force-sensitive resistor. The closest distance corresponds to ...

They feature analog pins for reading analog components (e.g., potentiometer, flex sensor ... come across the Uno and Nano. They're two of the most frequently used Arduino variations, but they ...