Make connections as shown. Make sure you connect Ground Pin of RFID reader to Ground Pin of Arduino. I am using the SoftwareSerial Library of Arduino which enables digital pins to be used in serial communication. I have used pin 9 as the Rx of Arduino. (You can also use the hardware R...
Where to use RC522 RFID Module The RC522 is a RF Module that consists of a RFID reader, RFID card and a key chain. The module operates 13.56MHz which is industrial (ISM) band and hence can be used without any license problem. The module operates at 3.3V typically and hence commonly u...
Next we need to give life to the two buttons. So when the “TurnOn_Button” will be clicked we will use the Bluetooth client function “Send1ByteNumber” to send a number to the Arduino Bluetooth module. In our case that’s the number 49 which corresponds to the char...
Of course, in a practical application, you will be connecting your serial connection to an actual device such as a modem, a printer or even some RFID readers, in fact, we use a serial connection in our tutorial on setting up the RFID RC522 Chip. For this Raspberry Pi serial tutorial, ...
How to Solder SMD Device – Fast Drag! The most efficient way to solder SMD components is drag soldering, if you get familiar with this technique, you can solder just with your electric iron and colophony. For the electric iron, it’s better to use flat surface header, and it’s also ...
RFID System Construction Any RFID System will consist of aRFID readerand aRFID tag. The tag will often be small and portable with little to no electronics in it. We will learn more about the tags later in this article, a simple RFID system can be represented using the below block diagram...