In this chapter, we learnt how to read Wi-Fi signal strength with a WiFi shield and make haptic feedback using a vibration motor according to the Wi-Fi signal strength. Further, we learned to use haptic feedback libraries to make feedback patterns.

In the next chapter, we will learn how to select and use a water flow sensor, and then connect it with Arduino and calibrate it, and also how to calculate and display the values on a LCD screen and store data in the cloud.