Arduino Uno click shield is an extension for Arduino Uno and any other Arduino-compatible board. It's a simple shield with two mikroBUS host sockets that allow you to connect more than 75 different types of click boards to the Arduino. Quickly add functionalities like GSM, GPS, WiFi, ZigBee, Bluetooth, or thunder detection, proximity and color sensing and so on. Software examples for click boards for MikroElektronika compilers are available on Libstock, giving you a repository of working code to use as it is, or as a starting point for your own projects. The package includes two 1x8 headers, and single 1x10, and 1x6 headers.
mikroBUS™ Standard specification
Arduino Uno click shield Examples
Arduino Uno click shield Schematic