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 ...

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, ...

[Sascha] abstracts his disposition out to either ‘good’ or ‘bad’ and pushes the corresponding button. The Trinket accesses an array and returns a randomly selected feeling to the LCD.

[Tobie’s] part of the hack is to use an Arduino and a few buttons as the controller. It’s easy to set up and we think the breadboarded controller approximates the size and weight of an LCD ...