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Celebration of Scholarship and Creative Activity 2023

Implementing an Ultrasonic Sensor for IoT Applications

Paul Price

Junior, Electrical Engineering Technology


We propose to investigate a collection of sensors connected to each other forming an Internet-of-Things (IoT). A microcontroller is a system-on-chip hardware that offers easy interface to a variety of sensors and actuators. Due to their low cost and small size, multiple microcontrollers can be connected to create a network system of sensors for providing comprehensive sensing and monitoring of a place or scene. Such a sensing system can be deployed in many IoT applications, such as industrial manufacturing, weather monitoring, logistics, smart homes and offices, security, indoor localization, and wireless artificial intelligence.

We will use the ESP32 microcontroller, which is widely available and popular, as our microcontroller of choice. We will also use an IC-SR04 Ultrasonic Sensor which acts as a rangefinder sensor due to ultrasonic pinging as our main test sensor. Developing software that reads the ultrasonic sensor data on the ESP32 and then in some way is able to communicate that data through an application of IoT is our goal.

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