IoT Based Temperature Control System Using Node MCU ESP 8266

摘要

Water heaters are currently needed especially in the industrial world. This heater is used to maintain the temperature of the liquid so that the products produced are appropriate with standard specifications. Along with technological developments in recent years, circulating water heaters still use conventional technology. This technology is relatively simple because it only applies the on/off system. This is not effective because the user has not been able to set the desired water temperature automatically and cannot be adjusted remotely. The purpose of this research was to overcome conventional technology systems by automatically updating the system based on IoT systems. The data update was useful for stabilizing responses at the desired setpoint of users and could be monitored remotely. This automated technology assistance was more effective and easier in terms of using water heaters in everyday life. To support this research in the manufacture of modern or automatic water heaters the system employs a PI controller system that uses analytical tuning methods. This analytical method was effective for finding PI control parameters in the form of K_p and K_i. Retrieval of supporting data in this study used the Node MCU ESP8266 microcontroller, tube or plant container, heater, DS18B20 temperature sensor, Blink application as a GUI in a water heater monitor. The results of the system response used analytical methods are delay time= 10.94, Rise time (5% -95%) = 9.97, Rise time (10% -90%) = 8.81, Settling time (2%) = 16.04, Settling time (5%) = 15.04. The system showed that the comparison of the results of the temperature stability of modern or automatic water heaters was more stable because it had response value equivalent to the setpoint.