A designed, built and tested greenhouse environment controller system on a PCB with the ATMega328P at the heart of operations with other integrated sensors such as the DHT20, DS18B20 and LDR which output real-time data to a Grove RGB LCD module. Ideal temperature set by a potentiometer and a relay-controlled fan to activate when greenhouse conditions become unideal. The ESP8266 as part of IoT to send the live data to charts on ThingsSpeak for visualizing and embedding in a website. With a 9V battery powering it all.
