This is a fun project that walks through how to reverse engineer a smart light bulb that uses Bluetooth Low Energy (BLE) to change its color. I stumbled on the Smart Bulb Colorific! bulb recently at a local store and was intrigued by its Bluetooth-based control and relatively low price (for a ‘smart’ gadget at least). Because the light bulb uses Bluetooth Low Energy (which is a subset of Bluetooth 4.0) it means any BLE device can in theory control the bulb. But to control the bulb the protocol for communicating with it must be understood, and this guide will show you how to use the Bluefruit LE sniffer and other tools to reverse engineer a Bluetooth Low Energy gadget.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.