In this tutorial we build a tool that enables you the measure the amount of light. For this we use a phototransistor that is connected to the Dwengo board. You learn how to connect analog sensors to the Dwengo board and how to use the built-in ADC module (Analog to Digital Converter).
Sensors exist in many shapes and forms. This makes it hard to find the right sensors to build, for instance, a robot. In this document, we provide some information on different types of sensors and how to connect them to the Dwengo Board.
In this tutorial we explain step by step how to build a small robot that drives in the direction of the light. For this the robot uses a servo and two light sensors. The same principle could be used to always perfectly align solar panels in order to maximize their performance.