PEMANFAATAN USB KONVERTER KE RS-485DAN MIKROKONTROLER AVR ATTINY2313 PADA SISTEM POLLING
Abstract: Almost people in
Indonesia ever seen quiz who wants to be millionaire. That quiz is sometimes
using a polling method to get the right answer. Audience at studio must help a
quiz’s participant by using keypad to get a right answer. Audience must push
the button of keypad where there is
choice of answers. After that the answer will be display in a bar graph of
percent. This called electronic polling system. With the aim of the research is
to design and build a polling system with 6 slave-based serial RS-485, USB and
microcontroller RISC and design and build a control system based serial RS-485,
USB and microcontroller RISC efficient. The method used in this research is to
study the reference, namely collecting materials that can be used as a
reference, observation and study references required, inventory problems and
needs in the design and manufacture, design and manufacture of hardware,
software design and manufacturing, and perform testing. RS-485 is standard for
communication with very long cable. This standard can use cable almost 1,2
Km long. RS-485 is very unique, this standard using master slave method.
So only the master can control slave. Slave is using a microcontroller to
manage data. AVR ATtiny2313 is a good microcontroller for slave. This is
microcontroller very small and very fast. Base from design, implementation and
test result indication implement of
RS-485 at polling system can be handle of case distance between master
and slave. Beside that not only one slave can be connected to master.
Penulis: Maryantho Masarrang
Kode Jurnal: jptlisetrodd130797
