Features: Hardware components: Arduino, relay module, jumper wires, and external power source Code: Arduino code for controlling the relay based on sensor input or a manual ... use of relays Getting ...

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 next section covers the complete circuit diagrams with visual references ... How do I make an automatic watering system with soil moisture sensor? Connect a relay module to Arduino to control a ...

The circuit diagram of the automation device using a motion ... The VCC and GND are shared by the Arduino Nano, the PIR sensor module, and the relay, as illustrated in Fig. 2. The OUT pin of the PIR ...

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 ...

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 ...