The DHT22 sensor is the successor of theDHT11 sensor. DHT22 is available as a sensor as well as a module. The functioning of both sensor and module of DHT22 are similar. The difference lies in the internal circuitry. The module contains an in-built filteringcapacitorand pull-up resistors....
RTC_GPIO17 – GPIO27 Hall sensor pin A complete guide onHow to use the built-in hall effect sensor of ESP32 It also has one hall sensor which is used to detect the magnetic field. Whenever you please this development board in the magnetic field, ESP32 generates a small voltage which ca...