Summary
In this chapter, we learned the basics of the DHT11 humidity and temperature sensor and the LM35 temperature sensor, including their operating ranges and how these sensors send data to a microcontroller board. These are practical and low-cost sensors that the Blue Pill and the Curiosity Nano can easily handle. This chapter showed two ways of showing humidity and temperature results. The Blue Pill showed the humidity and temperature values directly on the computer monitor and on an LCD, while the Curiosity Nano showed temperature and humidity ranges with LEDs. This chapter was beneficial because you learned how to get environmental data from sensors using microcontroller boards and how to display it effectively, using the microcontroller boards' input and output ports. This chapter also highlighted the use of an LCD to show the temperature and humidity data.
Chapter 6, Morse Code SOS Visual Alarm with a Bright LED, will review how to create a practical visual alarm....
