Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and ...

This project is an automatic door opening and closing system using an Arduino UNO, an ultrasonic sensor, red and green LEDs, a 16x2 LCD with I2C, and a servo motor. The door opens when a person is ...

Arduino UNO SPE Shield adds Single Pair Ethernet (SPE) and RS485 to Arduino UNO and compatible boards, notably the Arduino UNO R4, via a Microchip LAN8651 SPE controller. Single Pair Ethernet relies ...

The LCD display is activated, and the RTC module is started. If the RTC is not running, the program sets the time and date to the current compilation time using F(DATE), F(TIME). Time and Date ...

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