MESH Brightness Block MESH brightness is an app-enabled light sensor with customizable functions Visual coding app for projects (drag-and-drop interface, program blocks, send sensor data, and more) Built-in ifttt integration (use with Philips hue, smart things, lifx, WeMo, nest, and many more) Compatible with development boards (Arduino, raspberry pi, etc.) sensors and actuators A smartphone or tablet (android or iOS) is required to operate MESH blocks which use Bluetooth (ble)