RANCANG BANGUN ALAT PENCAMPURAN MINUMAN RINGAN BERBASIS MIKROKONTROLER AT89S51

Abstract

The design and realization of softdrink mixer device based on microcontroller AT89S51 has been done. The function device is automatically in softdrink mixing on glass or bottle package. The hardware of this device consists of censor LDR circuit, non inverting comparator, transistor as switch circuit, relay driver, minimum system of microcontroller AT89S51, LCD (Liquid Crystal Display), solenoid valve, keypad, 24V DC motor, buzzer, and conveyor. The software is assembly program. Based on this circuit, microcontroller as center on automatically softdrink mixer. The function of LDR is light intensity detection and the censor signal will be compare with non inverting comparator. To detect high level, used transistor as switch circuit. Relay circuit used to moved valve solenoid and DC motor. The function of LCD as display system. The keypad as number input of softdrink will doing. Voice indicator used to detect drink level. The conveyor function as move glass after loaded softdrink in the glass. This device has been realized and it can mixing softdrink. Output from softdrink mixing is softdrink in the glass and total softdrink input has give.