lpcware

Alphanumeric LCD displays

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by IanB on Tue Sep 16 02:49:18 MST 2014
Just wondering - what's the favourite way of connecting an alphanumeric display?

1. 4-bit bus
2. A fantastic bit of pcb-tracking to get 8 pins from the same port to connect to the display in the right order?
3. A long software routine that uses 8 adjacent pins on the package and send the data bits to three different ports?
4. Use the LPC122x because the pins are in a sensible order?
5. Buy a module with an I2C interface?


I've done two projects with LCD displays and used solution #3 on one of them and solution #4 on the other (both worked)

On a PIC or an Atmel it was easy, as all 8 pins from an 8-bit port were next to each other in the right order!

Outcomes