O'Reilly logo

PIC in Practice, 2nd Edition by David W Smith

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

10

Alpha numeric displays

Using an Alpha Numeric Display in a project can bring it alive. Instead of showing a number on a 7 segment display the Alpha Numeric Display could indicate ‘The Temperature is 27°C’. Instructions can also be given on screen.

This section details the use of a 16 character by 2 line display, which incorporates an HITACHI HD44780 Liquid Crystal Display Controller Driver Chip. The HD44780 is an industry standard also used in displays other than Hitachi (fortunately). The chip is also used as a driver for other display configurations i.e. 16 × 1, 20 × 2, 20 × 4, 40 × 2 etc. It has an on board character generator ROM which can display 240 character patterns.

The circuit diagram connecting the Alpha Numeric Display to the 16F84 ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required