mirror of
https://github.com/xodio/xod.git
synced 2026-03-09 02:06:49 +01:00
46 lines
1.4 KiB
Markdown
46 lines
1.4 KiB
Markdown
---
|
||
title: Showing Text on LCD
|
||
---
|
||
|
||
# #26. Showing Text on LCD
|
||
|
||
<div class="ui segment note">
|
||
<span class="ui ribbon label">Note</span>
|
||
This is a web-version of a tutorial chapter embedded right into the XOD IDE.
|
||
To get a better learning experience we recommend to install the
|
||
<a href="/downloads/">desktop IDE</a> or start the
|
||
<a href="/ide/">browser-based IDE</a>, and you’ll see the same tutorial there.
|
||
</div>
|
||
|
||
Brace yourself, because we are about to learn about the `text-lcd-16x2` node!
|
||
If you haven’t already guessed, this node is used to control 16x2 LCD screens.
|
||
|
||
Now, let’s concentrate on the two `constant-string` nodes. These nodes contain
|
||
and transmit data of type _string_. Yellow is used to indicate string type pins
|
||
and links. A string is just another name for a line of ordinary text. This
|
||
sentence is a string!
|
||
|
||
|
||
|
||
## Test circuit
|
||
|
||
<div class="ui segment note">
|
||
<span class="ui ribbon orange label">Warning</span>
|
||
Be careful, there are many connections so chances to make a mistake are high.
|
||
If you see no text, double check all connections and rotate the potentiometer
|
||
to adjust contrast.
|
||
</div>
|
||
|
||
|
||
|
||
[↓ Download as a Fritzing project](./circuit.fzz)
|
||
|
||
## How-to
|
||
|
||
|
||
|
||
You should now see “Hello world!” displayed on the screen. Cool? Try to
|
||
display your own message on the screen.
|
||
|
||
[Next lesson →](../27-lcd-data/)
|