The trigger function evaluates the most recent value(s) from an external sensor relative to (greater than or less than) a threshold value to switch an Arduino output pin from high to low, from low to ...

Detects alcohol vapor in the driver’s breath, providing an analog output proportional to the concentration of alcohol. Arduino Uno Microcontroller: The core processing unit that receives input from ...

Here is the schematic diagram of a Human-following robot circuit. This design incorporates three ultrasonic sensors, allowing distance measurements in three directions front, right, and left. These ...

A sound sensor is a simple, easy-to-use, and low-cost device that is used to detect sound waves traveling through the air. Not only this but it can also measure its intensity and most importantly it ...