Control of light intensity and temperature and noise notification in the classroom teaching-learning process using microcontroller

With sophistication in the field of technology that continues to grow, the field of education is also good at multiplying and paying attention to the benefits that can be developed from this sophistication, in the teaching and learning process a system is made. automation of light intensity and temperature control and notifications. In this study, the method used is to use research methods in the field of hardware programming. There are stages in this method, namely: Planning, Research, Component Testing, Design (mechanical, electronic/electrical, software), Functional Testing, Integration, Overall Testing, Optimization. In this system model, there are 3 rules, namely if the room detects a temperature of more than 28℃ and 80% humidity then the DHT11 sensor detects a noise that exceeds 90 dB, the buzzer will make a sound and will send a notification to the LCD in the form of a notification "PLEASE CARE" and if the LDR Sensor reads the state of the room intensity exceeds 250 lux then the lights will turn off.