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 GND to the ground rail. For the data connections, wire SDA to Pin 10, SCK ...

for instance Arduino, you would need atleast 6 I/O pins to talk to the LCD. However, if you use an LCD module with I2C interface, you only need 2 lines to process the display information. Now a days, ...

These days, you could be forgiven for thinking driving an LCD from a microcontroller is ... Instead, [Ivan] decided to drive it directly from an Arduino Uno. This is easier said than done.

When it comes to performance, there's a world of difference between the Raspberry Pi and Arduino ... you'll also need an I2C module to convert your LCD into an I2C device (so it uses fewer ...