Arduino (any compatible board), HC-SR04 Ultrasonic Sensor, Jumper Wires, Breadboard (optional), #Circuit Diagram: Trig Pin of HC-SR04 → Arduino Pin 9, Echo Pin of HC-SR04 → Arduino Pin 10, VCC of ...

1x Arduino UNO or Genuino UNO 1x USB 2.0 cable type A/B 1x Ultrasonic Sensor 1x LED 1x 220 ohm resistor 1x Breadboard 1x Jumper Wires 1x (Optional) 9V Power Adapter for Arduino 1x (Optional) Screw ...

Instead, it relies on an ultrasonic distance sensor to detect a hand (or foot) waved in front of the door. An Arduino Leonardo runs the show, sounding a buzzer when the ultrasonic sensor is triggered.

[lingib]’s dual sensor echo locator uses two HY-SRF05s, but the cheap and plentiful HC-SR04s will work, too. Both sensors are arranged for maximum beam overlap and wired up to an Arduino Uno.

The compact module helps us to test HC-SR04 modules quickly without a costly microcontroller setup (no code lines/solder smokes) and/or build an extremely portable minimalistic sonar device. I have ...

A simple robotics project simulated in Tinkercad based on Arduino Uno. It uses ultrasonic sensors for obstacle detection and can do basic movements using DC motors. The primary objective of this ...

In technological developments, ultrasonic sensors are often used to measure the distance from an object. The ultrasonic sensor commonly used to measure distance is the HCSR04 ultrasonic sensor. The ...