Easy LCD Arduino Display

I am tired of looking at wobbly windows full of Eclipse. The best and worst part of the IOIO board is the fact that the libraries are Java-centric…unfortunately, I am in the middle of a ‘worst’ phase. I am sort of stalemated. Unfortunately, my issue lies in something that should be trivial, namely naming. Once I can figure out how to orient the crap out of these object-ass pins, I will be good to go. Until then…I am going back to the basics. Processing looks so safe and warm. Coziness, for the win.

How about a 20 by 4 LCD project? Okay.

easy blue LCD arduino +1 easy

+1 blue

I have had this sitting on the workbench of bad lab for a while. Time to get after it.

The unit came assembled, minus the jumpers I needed to plug this into my breadboard for prototyping. Coincidentally, my soldering station needed to come out of retirement. Sixteen pins…sounds about perfect.

(hit the bump for several more pics, a snippet, and some other awesome stuff)

soldering wire spool


I snagged the unit from hacktronics.com. Their website has details on the pin-level for the LCD unit. Pretty straight forward…slam it together and feed it a string or four. Wiring as follows:

arduino lcd action

+ several wires

It has been a while since we have had a snippet. Fair enough; queue the snippet:

// LCD sandbox
// http://swantron.com
// 2011


// **Define pins**
// LCD RS – pin 12
// LCD R/W – pin 11
// LCD ENABLE – pin 10
// LCD BACK+ – pin 13
// LCD DATA4 – pin 5
// LCD DATA5 – pin 4
// LCD DATA6 – pin 3
// LCD DATA7 – pin 2
// LCD VSS, CONTRAST, BACK- – ground

LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 2);

int backLight = 13; // Define pin for backlight

void setup()
pinMode(backLight, OUTPUT);
digitalWrite(backLight, HIGH); // Backlight level (LOW / HIGH)
lcd.begin(20,4); // (Columbs, Rows)
lcd.clear(); // Clear screen
lcd.setCursor(0,0); // Move cursor, print
lcd.print(“liquid | swan”);
lcd.setCursor(0,1); // Move cursor, print
lcd.print(“crystal | tron”);
lcd.setCursor(0,2); // Move cursor, print
lcd.print(“display | dot”);
lcd.setCursor(0,3); // Move cursor, print
lcd.print(“(FTW) | com”);

void loop()

That is that. Again, the potentials for this sucker are vast. I would like to to let this rip with my PING sensor, but need to throw some more effort towards the IOIO. Java schmava. Stay tuned for a bad assed project of some nature…even plan B is pretty awesome these days.

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