Arduino and Nextion display....

Arduino and Nextion display I want to use Enhanced Nextion display (NX4024K032) to show the temperature and humidity of 5 DHT (AM2301) sensors plus the quality of air in three MQ135 sensors. Besides showing the temperature, humidity and air quality in the HMI, I also want to control some elements in the Arduino, through the display. Turn lights and ventilation on and off, and finally, control the temperature of a place. The details are as follows:  1 - Arduino MEGA 2560  1 - Nextion Display  5 - DHT21 (AM2301) sensor  3 - MQ135 sensor I want to send the information read in the Arduino of the sensors and show in the display. Inside the display I have a series of checkboxes that I want to check their status to turn on and off lights and fans. And finally I want to control the temperature of a machine's room. I'm building this project for a 3D printer that I'm doing for personal use. In the 3D printer I want to control the temperature inside the machine There is no deadline. I just want the project to work and the cheapest possible