This means that our lamp LEDs have 3 cables exposed: two power cables, and a common ground. High-side control can be achieved easily with P-channel semiconductors, but is impractical to do in our ...

His design is based on a combination of the ubiquitous ESP8266 WiFi chip and a NeoPixel ring from AdaFruit, so there are already great examples of how to code and control the hardware.

A logical choice for controlling a DIY smart home device is the ESP8266. With an integrated microcontroller, 9 GPIO pins which can also be used for I2C or SPI, a serial UART, and built-in Wi-Fi, the ...