Esp32 Microcontroller Based Braille CNC Printer. International Journal of Engineering & Extended Technologies Research (IJEETR), [S. l.], v. 8, n. 2, p. 1690–1695, 2026. DOI: 10.15662/IJEETR.2026.0802132. Disponível em: https://www.ijeetr.com/index.php/ijeetr/article/view/530. Acesso em: 22 apr. 2026.