When designing an embedded system with Internet connectivity using Wi-Fi, reading the Wi-Fi connections receiving signal allows the user to determine the available Internet connectivity and signal strength. Most devices show the signal strength to the consumer using a simple bar graph or something similar. In this project, however, we look into how to notify the signal strength level using a different kind of mechanism to the user: the haptic feedback.

Another technique is to send the Wi-Fi signal strength level over the Internet, which allows you to measure signal strength even in unreachable locations. In the previous chapter, you learned about Arduino Ethernet Web server. Here, similar implementations will be used.

In this chapter, you will do the following: