The applications that you can run on your Raspberry Pi Node.JS server are almost unlimited. From the pure GPIO control, via a surface for home automation to the monitoring server for individual services or sensors. Due to the low power consumption of the Raspberry Pi and still comparatively hi...
Since there is only one data line, we only need one pin (GPIO 18). It is important that the ground connections of the Raspberry Pi and the switching power supply are connected, but not the 5V voltages! Overall, only two cables run from the Raspberry Pi to the WS2812 LED Strip: GPIO ...