Tag Archives: sensor

Create a stand-alone Java App that displays info from a connected sensor

This article assumes you have already some experience in creating Java Apps. For instance if you have done the first 2 lectures of the course Application Development. You should also have prepared the DHT temperature/humidity sensor and have a working sketch for it (eg. by completing step 1 and 2 of this assignment, or via … Continue reading Create a stand-alone Java App that displays info from a connected sensor

Create a connected distance sensor with an ESP32 module

This short tutorial introduces the ESP32 module (a Lolin32 Lite) and connects an HC-SR04 Ultrasonic sensor. The entire prototype will be powered by a battery and sent its data to a webserver via Wifi. It is assumed you have installed the Arduino IDE and have some basic understanding of using electronics and wiring a breadboard. Although in … Continue reading Create a connected distance sensor with an ESP32 module

Using an Optical (IR) sensor with Arduino

This short tutorial introduces the Optical (infrared) distance sensor (Sharp GP2Y0A21YK0F). It is assumed you have installed the Arduino IDE and have some basic understanding of using electronics and wiring a breadboard. If you want to learn more or if anything is unclear, check out this extensive tutorial. Although in this example we use a display, you can … Continue reading Using an Optical (IR) sensor with Arduino

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Industry 4.0 Sensor Workshop

This page contains materials for the workshop given for the minor program Industry 4.0. Upcoming workshop on “Sensors”: Thursday December 3, 9:00 NH124 (Noordhorst, part of the Horst building). Topics of the “Sensors” workshop: Introduction to ‘Sense’ Sensor types Industrial Sensors Application in production environments/factories Industry 4.0 Practical Part of this workshop will be the … Continue reading Industry 4.0 Sensor Workshop

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I4.0 Sensor practical

Assignment: design, build and test a “product counter” which is able to count various products passing by on a conveyor belt. The counter should have a display which displays: a) measured distance, b) whether there is a product in sight (or not) and c) the number of counted products. Submit your results using the form … Continue reading I4.0 Sensor practical

Build an App with App Inventor which can display values of a connected sensor

This tutorial describes how to Use App Inventor to build an App which can read the online values of a connected sensor. For this, it uses a WebViewer Component and a Clock to refresh values. This is part 2 of a series, the first part, “Create a connected sensor” can be found here. This second … Continue reading Build an App with App Inventor which can display values of a connected sensor