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- Article name
- Software implementation of multiplexed Braille electromagnetic control via 74HC595 shift registers using SPI Arduino Uno
- Authors
- Khakimzyanova S. I., , khakimsiiln04@mail.ru, Kazan National Research Technical University named after A. N. Tupolev - KAI, Kazan, Russia
- Keywords
- Arduino SPI / shift register / tactile display / Braille coding / multiplexing
- Year
- 2025 Issue 2 Pages 47 - 49
- Code EDN
- VVLEBM
- Code DOI
- 10.52190/2073-2600_2025_2_47
- Abstract
- The article presents a software implementation of a control system for 18 electromagnetic actuators of a tactile Braille display using three 74HC595 shift registers and a hardware SPI interface of an Arduino Uno microcontroller. We have developed: an algorithm for serial data transmission, a library of Braille characters in 6-bit format, and methods for optimizing the update rate. The time characteristics of the system and code examples for practical implementation are given.
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