menu and status on the bottom LCD. DS3231 RTC: Accurate timekeeping with battery backup. DHT11 Sensor: Temperature monitoring in Fahrenheit. 4x4 Keypad: Intuitive menu navigation and settings input.

If you want to make a network attached environmental sensor, you wire a DHT11 up to an ESP8266 and you’re done. Time to move onto the software. In fact, it can take longer to come up with some ...