We have a collection of almost 500+ Arduino projects with Code, Circuit Diagram, and detailed explanations completely free for everyone to build and learn on their own. The IR sensor has a 3-pin ...

The microcontroller-based concept was chosen because I wanted to scale the sensor system later to suit other applications. Here is the diagram of my Arduino infrared close proximity ... the D13 signal ...

A simple breadboard based circuit diagram ... define SENSOR_1_PIN 2 // Pin for first IR sensor (INT0) #define SENSOR_2_PIN 3 // Pin for second IR sensor (INT1) This line defines “SENSOR_1_PIN” as pin ...

pin 13 will turn off. The circuit diagram for home automation is shown in Fig. 5. It is built around Arduino Pro Mini (Board2), IR sensor TSOP1738, NPN transistor BC547 (T1), 5V, single-changeover ...

Fig 1: Author’s prototype for Automatic Washroom Light Using IR Sensors The circuit diagram ... Each sensor has three pins, namely, Vcc, Vout, and GND. The Vcc pin is to be provided with 5V DC supply, ...

At the end of January 2021, the Raspberry Pi Foundation launched the Raspberry Pi Pico, which received a lot of attention due to its high-performance and low-cost. The size of Pico is 21mm *51mm, ...