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 ...

I2C is a wonderful ... polarity protection on every module, so, inevitably plugging a module backwards shouldn’t delay your project. With the Breakout Garden pinout, you also get an extra ...