Whenever we need to connect any AC Appliance in our embedded circuits, we use a Relay. So in this arduino relay control tutorial we will simply learn How to interface a Relay with Arduino. Here we are ...

For this, we need a light sensor to detect ... As per the circuit diagram, we have made a voltage divider circuit using LDR and 100k resistor. The voltage divider output is feed to the analog pin of ...

The hardware is consists of an Arduino microcontroller (here an Arduino Uno R3) and a pre-wired soil moisture sensor ... circuit diagram of the module, it is clear that, apart from the module only a ...

2 presents the circuit diagram for the fire alarm using a flame sensor and Arduino Nano ... Transistor T2 drives the relay, with its base connected to D11 pin of the Arduino Nano via resistor R3. The ...

IoT thermostat using an ESP8266-12E, DHT 22, and relay ... Follow the wiring diagram given in the docs 2. It is recommended to first try the breadboard configuration (and before using hot glue on the ...

The Ultrasonic sensor is powered by 5V through Arduino, its trigger pin connected to the Pin5 and Echo pin s connected to the Pin6 of the Arduino. The buzzer is connected to the Pin4 of Arduino.