Now let's see the detailed wiring connection used in the RFID attendance tracker system, starting from the Arduino UNO. Digital Pin 11 MFRC522 MOSI SPI Data Out SPI communication Digital Pin 12 ...

Place the SIM800L library folder into your \Documents\Arduino\libraries folder. You may need to create the libraries subfolder if its your first library. Restart the ...

Base on servo library for stm32f4 (d2a4a47).

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