// - For this project, use a power supply of at least 5V 2A. If you use a power supply with good quality components, 1A current is enough. // // - If possible use good quality cables for the power ...
LiquidCrystal lcd(LCD_RS, LCD_ENABLE, LCD_D4, LCD_D5, LCD_D6, LCD_D7); // Tạo đối tượng cho màn hình LCD ...
The use of Radio Frequency IDentification (RFID) technologies is growing. Many different applications are implemented in various sectors, and used for very different purposes. RFID enables wireless ...
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 ...
March 31, 2012 Add as a preferred source on Google Add as a preferred source on Google If your home or office has unique security challenges or you just want the geek cred you assemble a system to ...
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