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- Article name
- HARDWARE IMPLEMENTATION OF MULTIPLEXED MULTI-PIN CONTROL USING BRAILLE CHARACTERS AS AN EXAMPLE
- Authors
- Khakimzyanova S. I., , khakimsiiln04@mail.ru, Kazan National Research Technical University named after A. N. Tupolev - KAI, Kazan, Russia
- Keywords
- multiplexing / 74HC595 shift register / Arduino Uno / dynamic control / electromagnetic actuator / Braille display
- Year
- 2025 Issue 2 Pages 16 - 21
- Code EDN
- TEWFNH
- Code DOI
- 10.52190/2073-2597_2025_2_16
- Abstract
- The article examines the hardware implementation of a multiplexed control system for eighteen electromagnetic actuators using three pins of an Arduino Uno microcontroller, demonstrated through Braille display characters employing the 74HC595 shift register and the microcontroller's hardware SPI. A cascaded circuit based on 74HC595 shift registers is presented, enabling a sixfold reduction in required GPIO pins. The study includes: a schematic diagram, a 3D-model developed in Tinkercad, pinout configurations, and a comparative analysis with traditional control methods.
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