Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Resource icon

K8LH 2-Pin 74HC595 LCD "8-bit" Backpack 2014-05-23

Status
Not open for further replies.

Mike - K8LH

Well-Known Member
Mike - K8LH submitted a new article:

K8LH 2-Pin 74HC595 LCD "8-bit" Backpack - A relatively simple 2-pin LCD backpack for around $2 (USD).

Here's a relatively simple Backpack design for HD44780 type LCD displays that requires just two I/O pins on the host microcontroller while driving the LCD display in its "8-bit" interface mode.

**broken link removed**

Theory of Operation

Note that the 'E' line from the microcontroller is directly connected to the 'RCK' pin on the 74HC595 and the 'E' pin on the LCD. In this way the 'E' line performs double duty by latching data from the 74HC595 internal shift register onto its...

Read more about this article...
 
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top