I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...
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Guía completa del Arduino 4 relays shield
Domina el Arduino 4 Relays Shield. Aprende a controlar motores y luces con seguridad, especificaciones técnicas y trucos de ...
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