House Controller

Saw, Chia Fung (2010) House Controller. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Overall, the purpose of this project is to build a system that can control electronic and electrical appliances by using Personal Computer (PC). This technology is allowing user to activate their house electric element by using a PC. Basically, this project development consists of three parts. The first part is software development. Graphical Interface User (GUI) is used as interface from user to the system. Program code and GUI was designed by using Visual Basic 6. The user can active their house electrical element through the software. The second part is a circuit. This circuit was created to convert from low voltage to high voltage. For acknowledge, the voltage of a parallel port is around 1.9Vdc to 2.5Vdc. Hence, the voltage of the parallel port is unable to activate a programmable logic controller (PLC). Thus, this converter circuit is to enable an output parallel port (1.9Vdc to 2.5Vdc) to active a PLC (24Vdc). A transistor was applied into the converter circuit (C9013). The function of the transistor is to be a switching. The third part is the relay. The relay is applied to the output PLC. The function of the relay is to convert from Vdc to Vac. Lastly, from the normally open (NO)of the relay is applied to electric element.

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