The development of Microcontroller-Based Water Level and Temperature Control is the development of Microcontroller-Based Water Level Control Design. This equipment is a tool that can be used to monitor and control the level and temperature of water. The aim of this research is to make a water level and temperature control device based on microcontroller, and to display the information of water level and temperature on the computer. The research methods used during the implementation process of this research are : literature study, hardware and software design, and data retrieval. The Microcontroller-based Water Level and Temperature Control uses two sensors, namely : ultrasonic sensor to detect water level, then the second sensor is a thermocouple sensor which is used to detect water temperature. This equipment uses a water pump to flow water from one tank to another, and the heater that used to heat water. The device has 2 buttons, where the first button is used to control the water level, and the second button is used to control the level and temperature of the water. Based on the results of the study it can be concluded that this water level and temperature control system works well as expected, where this equipment uses a multi position control system mode that has been programmed in the Arduino software and can display sensor readings in the form graphs using matlab software.

Industrial Mechatronic System (IMS) is a system designed focuses on the simulation of industrial production activities. This study aims to re-operate Industrial Mechatronic System and robot arm as a whole system by means of treating and repairing some of the components and develop the universal and partial codes. The system consists of six stations and a robot arm with different functions. Some of the stations and the robot arm cannot be operated properly and cannot move per-station by using the factory default codes. To operate each station required the development of coding using Programmable Logic Controller (PLC) additional reserve to avoid deletion of codes that exist in the main PLC with according to it’s work principle. The results showed that the Industrial Mechatronic System can be used to simulate the production system on a PLC-based industry that can be operated universal and partial.