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 ...

Each of the 14 digital pins on the Arduino Uno can ... SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK). These pins support SPI communication using the SPI library. LED: 13. There is a built-in LED ...

SCK goes to SCK, MISO goes to MISO, and MOSI goes to MOSI, right? Yeah. You’ll need to throw in a chip select pin, but that’s ... found in thousands of Arduino tutorials do the same thing ...

SCK goes to SCK, MISO goes to MISO, and MOSI goes to MOSI, right? Yeah. You’ll need to throw in a chip select pin, but that’s ... found in thousands of Arduino tutorials do the same thing ...

So, let’s start by watching this 7 minutes video to see the entire system in action: The resetAlarm integer is the Arduino pin where we connect the button that is used the reset the alarm. The relay ...