Setup power supply by connecting one end of a jumper wire to 5v pin of the Arduino Uno and the other to the "+" on the breadboard. Connect another wire to the GND pin on the uno and the "-" of the ...

Today we are adding one more Security Alarm in our list which is based on Ultrasonic Sensor. This Arduino Controlled Door alarm can be installed near the door to detect the presence of anybody at the ...

Connect the Trigger (Trig) pin of the ultrasonic sensor to digital pin 2 on the Arduino. Connect the Echo pin of the ultrasonic sensor to digital pin 3 on the Arduino. Connect the positive (anode) leg ...

1 Arduino Ultrasonic Sensor (HC-SR04) 1 buzzer; Ultrasonic sensor, mounting circuit; It is a very simple circuit. On the one hand, we will have all the alerts, acoustic and visual, and on the other ...

Smart Blind Stick using Arduino Circuit Diagram. The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind people, detailing how the ...

Fig. 2: Circuit diagram of social distancing alarm. HC-SR04 ultrasonic sensor utilises sonar to determine distance from an object ... So, a total of eight pins are needed to connect to the Arduino ...

The set-up process is very simple, and best understood by referring the wiring diagram. If everything goes right,you should see the burning eye of the red LED when there is no object in the safe-zone ...

Now, as we know how the components work, let’s go ahead and assemble theses components together and make a circuit as shown below. The Ultrasonic sensor is powered by 5V through Arduino, its trigger ...