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Topic: LCD Help (Read 1 time) previous topic - next topic

ckeulen5

Hi,

I recently purchased an lcd display:
http://www.solarbotics.com/products/18710/
When I tried to get it working by following this tutorial:
http://arduino.cc/en/Tutorial/LiquidCrystal
I had almost no output from the lcd, there seemed to be faint blocks that would show but nothing more. I have not soldered the connections to the lcd board yet, I just placed the board over the pins to make the connections. Could this be the problem? I am hesitant to solder it in case I need to return it. Are these components sensitive, could I have done something to fry it? Otherwise am I doing something wrong?

Thanks,
Casey

ckeulen5

Or to simplify my question from above. Should I go ahead and solder the pins on to the lcd and give it a try or should I try to return it because it may be faulty?

Thanks

forex2

i had a similar problem
connecting 5V to pin 15 and ground to pin 16 did make my text appear
Arduino Uno                / Arduino 022
Arduino Mega 2560
Ethernet/uSDcard shield Wiznet
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Airi

ckeulen5

I'll give that a try.

Thanks!!

floresta

Quote
Should I go ahead and solder the pins on to the lcd and give it a try or should I try to return it because it may be faulty?
Yes you should solder the pins before you condemn the board.  If it is faulty they should take it back anyway - how else could you determine if it works without connecting it to something.

Quote
connecting 5V to pin 15 and ground to pin 16 did make my text appear
Most if not all of the blue LCDs are illegible without powering the backlight so this is good advice.  Since the backlight is rated at less than 5v you should probably use a series resistor in the line to pin 15.

Don

ckeulen5

Great, that's exactly what I wanted to know. Can't wait to get home to try it out.

Thanks!!

ckeulen5

That did the trick!!

Thanks alot!!

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