Arduino pins where the LED is attached */ #define LED_1 2 #define LED_2 3 #define LED_3 4 #define LED_4 5 #define LED_5 6 #define sensorPin A0 // Analog input pin that the Sensor is attached to /* ...

Working Principle of ACS712 Current Sensor with Arduino The ACS712 sensor operates on the Hall-effect principle. When current flows through the input terminals (IP+ and IP-), it generates a magnetic ...

Arduino UNO The Uno is a microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB ...

The digital signal output to be detected (usually marked as DO in the module) is applied to D2 input of the Arduino. Analog output (marked as AO) from the module is not used here. Sensor-head of the ...

One advantage of using Arduino as a security system is the flexibility ... The alarm system is triggered when a “Logic High (H)” level signal is detected at its sensor input port. As indicated, our ...

The device includes the connection between an Arduino microcontroller and an optical mouse sensor to provide help in reading the movements from horizontal and vertical directions. The Arduino board ...

When movement is detected, the sensor sends a signal to the Arduino Nano, which processes the input and triggers the relay. Fig. 1 displays the prototype. Fig. 1: Authors’ prototype of Arduino motion ...

At the start, the message is printed on the screen that guides the user to choose the sensor through a keypad. The user has to provide the input at the TestPin and the output is fed into the Arduino.