LCD Connections on PPDB
Timothy Goltser
Posts: 8
I am having a bit of a problem with experiment 11 in stampworks. Does anyone have a wiring diagram, instead of a schematic
I hooked up all the lcd bus pins
how do i do the resistor part?
I hooked up all the lcd bus pins
how do i do the resistor part?
Comments
Second, the resistors are already attached to the board for the LCD. But you do have to decide if you want 8bit or 4bit communication and wire accordingly.
Generally, a wiring diagram and a schematic are the same thing, but I do understand what you are hoping to get. Why not use the wiring examples that Parallax provides with the LCD documentation? Parallax tries to provide a simple Proof of Life procedure in the documentation with every device they sell.
Look at your PPDB documentation under the LCD section for some useful information about hookup.
Regarding those 220 ohm resistors in the PPDB schematic, they are protection that doesn't have to be included - so you are going to find a lot of example on the web and in Parallax that do not have them. Don't worry about them.
The main point is to learn how to connect your 3 control wires and 4 or 8 data wires. If you use only 4bits of data, the other 4 wires should go to ground. You PBasis Manual also has LCD examples.