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, ...

To begin, [Malebuffy] knew he would need a way to display the ... fuel flow sensor. The Arduino processes the data and then transmits it to a smart phone via a Bluetooth module.