International Journal of Computer Techniques -– Volume 5 Issue 1, Jan – Feb 2018 ISSN :2394-2231 http://www.ijctjournal.org Page 50 Temperature Monitoring In Water Heating System Using Control Temperature with Pid Ziegler Nichols Method Web Based Agus Riyanto 1 , Muhammad Ramdhan 2 , Galih Surono 3 , Ayu Ratna Juwita 4 , Adi Rizky Pratama 5 Faculty of Computer Science, Budi Luhur University, Jakarta, Indonesia --------------------------------------------************************------------------------------------------ Abstract: Many industries use heating for the production process. But the problem is that this heater must be controlled to its temperature so that the hot temperature in accordance with the desired, because if uncontrolled heat will lead to overheating and over pressure that will cause the production process to fail. To control the heater then used the on-off method and PID method which is a method to determine the precision of an instrumentation system with the characteristics of feedback on the system. On the control result using the on-off method to address the time when the process of heating water from the initial temperature of 36.69 to the desired temperature value 73 that is 8 minutes 14 seconds while in the heating process using PID from the initial temperature of 29.56 to the desired temperature value 73 that is 19 minutes 14 seconds. Temperature value can be seen in the web display either in the form of numbers with units of degrees Celsius or in the form of graphs. While the result of testing tool to user acceptance / respondent shows that variable of PU (X1) and variable of PEU (X2) to receipt of BITU (Y) user is acceptable. This is indicated by the reliability test with the value of croncbach's alpha PU 0.759> 0.60, PEU 0.669> 0.60, PU and PEU validity show r table value higher than t table, multiple linear regression tests PU (X1) and PEU (X2 ) to the receipt of BITU (Y) users shows significant value 0,000 <0.05, the summary summary model shows the value () = 0.262 and anova attributes the Sig value. F of 0.000 <α = 0.05. Keywords — Control System, PID, Node Mcu esp8266, Temperature, Monitoring. -------------------------------------------************************------------------------------------------- I. INTRODUCTION Many industries today take advantage of electronics advances for their production processes. As a result they do not require many employees for the production process. One example is an industry that needs a heater in its industrial process. The use of heaters in the industry does not detract from some of the flaws such as the heater is unable to get the optimum temperature that has been determined so that the industrial process is not running properly [1]. The need for increasingly advanced technology, demands the development of a reliable control system. A good control system is essential in improving efficiency in the production process. For example, temperature control automation in industry[2]. Along with the increasing technological developments, the technology used in automation control suhupun increasingly sophisticated. In this research we will create a miniature model of temperature controlling plant which is expected to help the use of RESEARCH ARTICLE OPEN ACCESS