This ESP8266 based IoT smart Jar allows us to keep track of the stocks, and it is easily accessible from using the internet. The Jar includes an ultrasonic sensor at the top of it and uses the ...

Ultrasonic Sensor Arduino Circuit Diagram and Explanation The circuit diagram for arduino and ultrasonic sensor is shown above to measure the distance. In circuit connections Ultrasonic sensor ...

Lab Exercise - ESP8266 and HC-SR04 Ultrasonic Distance Sensor This lab will introduce students to the HC-SR04 distance sensor.

Features Measures distance using an ultrasonic sensor. Sends an alert message to a Telegram bot when an object is detected within 20 cm. Easy to set up and use with the ESP8266 microcontroller. Uses ...