This tutorial describes how to build an electronic circuit with an RGB LED (a LED that can change color), and change its color using an App. It also demonstrates two-way communication over Bluetooth LE between an App built with App Inventor and the BLE-Nano board. The BLE-Nano board is basically an Arduino Nano with an … Continue reading Bluetooth communication between an App built with App Inventor and the BLE-Nano board
Tips and information on using the chat service Tawk.to.
Codesandbox.io is and online coding environment (IDE) which can also be used as a basic HTML/CSS editor. This article briefly introduces the first steps to get started using it for basic web development. Using Codesandbox for web development has some advantages: No software needs to be installed on your computer Works in a browser If … Continue reading Using Codesandbox as a basic HTML/CSS editor
The examples in this article use an OLED display. Countdown timer example In its simplest form, a countdown timer can be coded like this, using the loop() for repetition (no for- or while-loop needed!): Full example : oled_display_countdown_start_button.ino This will countdown from 10 to 0 in ten seconds. If you prefer to display the number … Continue reading Countdown timers and executing tasks in parallel on an Arduino
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
The BLE Nano as sold here is a combination of a traditional Nano with a Bluetooth BLE module, based on the CC2540 BLE bluetooth chip. The Bluetooth module is directly connected to the TX, RX pins of the Arduino (pins 0 and 1). This is the pinout of the board: Check out the location of … Continue reading Introduction to the Arduino BLE Nano
An example to control the intensity of vibration using PWM for the Vibration DC Motor Module. For example this model: Connect the module to 5V (VCC) and ground (GND) and the IN pin to any PWM pin of the Arduino. Eg. for an Arduino Uno, this can be pin 3. For an overview of PWM … Continue reading Vibration Motor control
Part of series about Android App Development. This is the second article, in which you will learn to create a first interactive userinterface.
Part of series about Android App Development: first step: installing Android Studio and create a ‘hello world’ app.
Learn how to count products on a conveyor belt with a distance sensor. This article explains how to use a distance sensor for counting objects. In this case, we have a conveyor belt with products, which we will count. This article is part of a lecture on use of sensors in Industry 4.0. The setup … Continue reading Object counting with distance sensors