IoT-based Control and Monitoring for DC Motor Fed by Photovoltaic System

摘要： Internet of Thing (IoT) makes the monitoring and controlling process become accessible everywhere and every time. In this paper, the IoT is used to control the speed of a DC Motor remotely through smartphone apps. The proposed system uses the 50Wp solar panel and DC-DC Converter to provide 24V dc to the motor. In speci?c, a PID algorithm is applied to control motor speed from the measured back EMF. There are 3 experiments that have been done. The ?rst is controlling motor speed through a smart phone, the second is the relationship between EMF and DC Motor speed, the third experiment was monitoring motor speed on Thingspeak and Blynk apps.