This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ... The set-up process is very simple, and best understood by referring the wiring diagram. If everything ...

[Front of HC-SR04] ┌──────────────┐ │ O O │ <- Ultrasonic sensors (eyes) │ │ │ VCC TRIG ECHO GND │ <- Pins at the bottom └──────────────┘ ...

If you do not know about LED and ultrasonic sensor (pinout, how it works, how to program ..), learn about them in the following tutorials: -Arduino-LED tutorial ...

In the following diagram the connection can be observed. Things to keep in mind: The resistors are 220 Ω and are placed in series with the LEDs. The Arduino ultrasonic sensor connects to two digital ...

The ultrasonic sensor acts as the input and the servo motor acts as the output, the Arduino UNO microcontroller is the main brain behind the project. The block diagram for Arduino smart dustbin is ...