Rancang Bangun Sistem Penjadwalan Service Ac Berbasis IoT

In the problem of using air conditioners, users often use AC devices with large enough power, to save electricity use, the use of electrical resources must be controlled. Therefore it is necessary to have a system that can help to control the use of air conditioning. In this thesis, a system is designed using the Internet of things on the NodeMCU ESP8266 and the Blynk application that can control the use of air conditioning by displaying power and temperature in the room, activating and deactivating electronic devices, and getting notifications from the PZEM-004T sensor via a smartphone if the current usage AC is more than 3.5 A. From this study, the average current value of the AC load on the PZEM-004T sensor is 3.1A and the amperage pliers is 2.99A with an error percentage of 1.1%. power and current data transmission for 5 seconds