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, ...

[Ivan]’s LCD was ... The display featured no onboard controller, and the original driver wasn’t easily repurposed. Instead, [Ivan] decided to drive it directly from an Arduino Uno.

As you can see in the schematic all three TC74 sensors have their SDA and SCL pins connected in series to pin A4 and A5 on the Arduino board. The two 4.7K pull-up resistors must be used when using I2C ...

Padow] put together an Arduino Uno, SD card, four line character LCD, and PS/2 keyboard ... not think back to an orange or green monochrome display. Just like decades past, this implementation ...

The Arduino ... and an LCD to display this temperature reading and the speed the motor is currently running at. Aside from these components, you'll also need an I2C module to convert your LCD ...