Hardware and software requirements
For this project, you will of course need an ESP8266 chip. As for most of this book, I used the Adafruit Huzzah ESP8266 module, but any ESP8266 module will work fine here.
As a sensor, I'll use the DHT11 sensor here just to illustrate the behavior of two out of the three scenarios in this chapter. However, you could use any sensor, or even use dummy data for this chapter. The goal is really to learn how to send notifications.
You will also need a 3.3V/5V FTDI USB module to program the ESP8266 chip.
Finally, you will also need some jumper wires and a breadboard.
This is a list of all the components that will be used in this chapter:
Adafruit ES8266 module (https://www.adafruit.com/products/2471)
FTDI USB module (https://www.adafruit.com/products/284)
DHT11 sensor (https://www.adafruit.com/products/386)
Breadboard (https://www.sparkfun.com/products/12002)
Jumper wires (https://www.sparkfun.com/products/9194)
On the software side, if it's not been done yet, you will...
