The recently added temp & humidity unit uses an RF transmitter module in addition to the ESP unit. Why can't the ESP handle all the wireless functionality?

Q&A Forum › Category: ESP8266 › The recently added temp & humidity unit uses an RF transmitter module in addition to the ESP unit. Why can't the ESP handle all the wireless functionality?

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Stewart Lindenberger asked 9 years ago

Why can’t the ESP handle all the wireless functionality for this project? Why is the additional RF module required?

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Rui Santos Staff answered 9 years ago

Hi Stewart, the 433MHz RF module is used to communicate with the outlets. In order to read the temperature and humidity, you only need the ESP8266 and the DHT11. The idea was after Module 8 – Unit 3 the circuit remains the same, but we keep adding more functionality to the ESP8266.