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 ...

As with last year’s PIC-based tutorial, [Chris] is using a character LCD to output the reading ... off a transistor connected to one of the Arduino’s external interrupt pins.

As promised in the first part of this article, now it is time to see in detail how we can use the Alphanumeric LCD Display in our Arduino sketches. The idea beside this project is to give a simple ...