Learn how to build a remote controlled Rover car with Lego Mindstorms, with an Arduino ‘brain’, which can be remote controlled via Bluetooth with a phone. This guide uses parts from the Steering rover example on nxtprograms.com. It is also…
In this example we will control a RGB LED from an Android App via a Bluetooth connection. A HM10 BLE Bluetooth module is connected to an Arduino Uno. This tutorial assumes you already have some experience with Arduino. If not,…
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…
This tutorial demonstrates how to build a simple sensor and publish its values online (on a web server) using an ESP32 module. We will build an Arduino sketch which will read the sensor values, connect to WiFi, connect to a…
Today I created a coding example which demonstrates how to read Exif data from an uploaded photo and extract the GPS location from that and show the location of where the photo was taken using Google Maps. To accomplish this,…
Getting started as a project team can often be chaotic and unclear. To quickly establish some structure, first divide roles. Roles can be various, adapted to the kind of team you are. For instance for a student project team, working…
I have written a class for the HiTechnic Colorsensor, which makes it possible to use this sensor with the EVShield. The example sketch requires the class EVs_HTColorSensor which you can download here. Extract the two files from the zip-file into…
Last update: 03-07-2025 This is a discussion and collection of links about web design which tries to give some guidelines. It is in no way meant to be complete. A responsive layout in website design means that the website automatically…
To quickly change the Spike into an Explorer robot, you can strip legs, claws and tail, leaving the chassis as a basis to build the Explorer robot.Then add wheels, a bumper with touch sensor and an ultrasonic sensor mounted on…
This guide explains how to build the Lego Mindstorms model “Spike”, powered by an Arduino and an EVShield. The original version of the Spike is powered by a Lego NXT. Requirements EVShield, Arduino Uno, Battery holder (+6 AA batteries) Lego…