Connect the A0 pin of the Arduino to the same column where the LDR and resistor is connected (Since the LDR gives out an analog voltage, it is connected to the analog input pin on the Arduino. The ...

IR Sensor Pinout. The IR sensor has a 3-pin connector that interfaces it to the outside world. The connections are as follows: VCC is the power supply pin for the IR sensor which we connect to the 5V ...

MAX4466 Module Arduino Interfacing Circuit Diagram. For interfacing the MAX4466 module with the Arduino, we will be using an analog pin. Follow the circuit diagram below and make the connections as ...

Light and dark detection using an LDR. For this project, let’s stick to the LDR sensor module so we can select the light or dark detection by placing jumpers. We’ll be using this module to detect ...

An active buzzer module is also included for audio signaling purposes. For environmental monitoring, the kit offers a DHT11 sensor mounted on a PCB, providing reliable temperature and humidity ...

A.3 Controller. The controller of the circuit consists of an Arduino-Nano board (AR1). Figure 4 shows the Arduino-Nano board. The board drives an 8*2 LCD (LCD1) and also reads the status of the SW1, ...

Connect the A0 pin of the Arduino to the same column where the LDR and resistor is connected (Since the LDR gives out an analog voltage, it is connected to the analog input pin on the Arduino. The ...