As we can see, bridging the gap between the digital and analog worlds for data display is relatively easy using the Raspberry Pi. Its GPIO port allows for easy connection to various output devices such as motors and LEDs.
In this chapter, we connected a servo motor and LED, and controlled them using Python code. We will expand on this in Chapter 6, Working with the Servo Control code to Control an Analog Device, as we build an IoT weather dashboard with an analog meter display.