Tag Archives: inventor

BLE-Nano with RGB LED

Bluetooth communication between an App built with App Inventor and the BLE-Nano board

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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 →

Control an RGB LED from an Android App via Bluetooth

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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, you might want to follow a basic tutorial and/or install the Arduino software (the IDE). … Continue reading Control an RGB LED from an Android App via Bluetooth →

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

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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 is to create a connected sensor. For that, do one … Continue reading Build an App with App Inventor which can display values of a connected sensor →

Remote control a catapult with an App build with App Inventor

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In this previous article we learned how to build an App with App Inventor and connect it to a Lego Mindstorms NXT. Now we will extend that App to control a Catapult robot. If you have not done so already, first build the Catapult. Now that you are able to connect your phone to the … Continue reading Remote control a catapult with an App build with App Inventor →

Control a Lego Mindstorms robot with your phone with App Inventor

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First steps To be able to use App Inventor, you will have to register with a Google Account. So go to the site ai2.appinventor.mit.edu and register/login. Install the MIT AI2 Companion app on your phone. To be able to identify your NXT (if there are many Bluetooth devices), you might want to change its name: Start the Lego … Continue reading Control a Lego Mindstorms robot with your phone with App Inventor →