The Relay Shield provides a solution for controlling high current devices that cannot be controlled by the Arduino’s Digital I/O pins due to their current and voltage limits. The Relay Shield features ...
The Arduino Relay Shield allows your Arduino driving high power loads. The Arduino Relay Shield allows your Arduino driving high power loads. The Shield features three relays, each relay provides 2 ...
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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