The Sensorbox is the ideal supplement to extend the scope of the primary school class to secondary education. The sensors can be connected to the Calliope mini via a simple plug connection via the Grove connectors.ULTRASONIC SENSORThe ultrasonic sensor can be used, among other things, for the development of an autonomous vehicle. In the Calliope office in Berlin, such a sensor is used to welcome visitors: The sensor monitors the door and as soon as someone moves through the entrance, the Calliope mini controls a small congratulations card module, which then plays a greeting.HUMIDITY SENSORWith the class set for SEK I there is the possibility to develop a plant station. Here, for example, the moisture sensors can be used to check moisture in a flower pot and water can be added with a pump (or small vessel attached to a servo motor) as soon as it is determined that the plant in the pot is too dry.This text is machine translated.