To link a standard 16×2 LCD directly with the microcontroller, 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 ...

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 ...

Step-by-step guide on designing and programming a custom I2C slave sensor device using Arduino. Trump overpowers Musk's ...

It can be very helpful when you want to measure the outside, inside or other temperatures in the same time but you don’t want to use a lot of pins of your Arduino board. I2C protocol makes it easier ...

The basic 16×2 LCD is an extremely popular component that ... make it so easy to work with; if you’ve got an I2C variant of the display, it only takes four wires to drive it.

[Usmar A. Padow] put together an Arduino Uno, SD card, four line character LCD, and PS/2 keyboard. but he’s also included alternative options to go without an LCD screen by using a computer ...