For the transmitter, the ultrasonic transducer is simply tied to one of the digital pins on the Arduino. The receiver is a bit more complex, requiring a LM386 amplifier and LM393 comparator to ...

So you finally decided to hop on the Arduino bandwagon ... of frequently used hardware like basic electronics (e.g., resistor, diode, capacitor), input (e.g., push button, ultrasonic sensor ...

Arduino boards are also ideal for hardware-centric projects as they ... for interfacing with frequently used components like ultrasonic sensors and LCD modules. The libraries even come with ...