In this chapter, we discovered how to manage the ADCs, the GPIOs lines, a GSM module thought, and a serial port. We also saw how to implement a simple monitoring program that can communicate (through a database server) with a sensors reader task to collect input data, and with an actuators manager to alert the user in case of emergency.
In the next chapter, we'll see how to manage an ultrasonic distance sensor to implement a parking assistant that can communicate to the driver, the distance between the car and the garage's wall. However, the really interesting part of the next chapter is about how to manage the distance sensor in two different setups: one with all the peripherals near the BeagleBone Black, and another with a remote connection of the sensor through a USB cable.
