You can throw a Raspberry Pi camera and OpenCV at the problem and approach it through software, or you can buy an off-the-shelf RGB sensor and wire it up to an Arduino.

Avnet Silica has an NB-IoT Sensor Shield compatible with the Arduino UNO R3 connector layout. As a multi-mode connectivity board, it supports both the ...

Intended to help teachers and students to learn about programming, electronics, design, and logic, Grove Zero Kit is a collection of plug-and-play modules, each including a pre-configured ...

Researchers from the University of Johannesburg in South Africa have developed a cleaning system for solar modules based on the TCS3200 color sensor and the Arduino Uno open-source microcontroller.