A small tutorial for interfacing a ultrasonic sensor with arduino this uses a sensor called HC-SR04 which sends ultrasonic waves to detect objects in front of it.

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 ...

This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

Arduino Obstacle Avoiding Car Circuit Diagram The complete circuit diagram for this 2wd obstacle avoiding robot is given below. As you can see, it uses an Ultrasonic sensor to take measurements in all ...

Arduino read the height and reports the water depth of the tank and the same is displayed in LabVIEW front panel. Advantage of this over other existing automatic system is it provides non-contact ...

Vehicle over-speed detection and accident-avoidance system is an Internet of Things (IoT) based system which collects data via sensors such as ultrasonic sensors and alerts the driver. The sensor is ...