Development of Roaster Control System Based on Arduino

Abstract

This research develops roaster control system using Arduino as central to processing data that provides a reference for machine operations. Development of this system as an alternative to use of thermostat as a conventional contactor at roaster that is less detailed, easily damaged, less sensitive and effect to productivity. The research was conducted by the design and implementation method that is by choosing and connecting the appropriate sensor components to Arduino, making algorithm protocol, making programming, doing the installation to roaster machine and test the system. This system works when the thermocouple read and transmits temperature data for processed and used as a reference to execute the machine. Arduino as the central processing for all data input and output. Testing carried out on small-sized roaster after being modified using Arduino control systems. The test results show that under conditions of no load, the control system requires 38 minutes operate until the temperature reaches 450ᵒ Celsius, whereas when given HS coffee, the system requires ± 1-hour with 10-minutes delay until the color of coffee is black and ready for the milling process. Control system of roaster machine with Arduino produces the better black color of coffee, more fragrant and better quality.