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Topics - c2hollow

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Character LCDs / Arduino LCD library not working with newhaven display NHD‐0420H1Z‐FL‐GWB-3V3
« on: July 08, 2014, 01:44:44 PM »
Assuming that my code for controlling the NHD‐0420H1Z‐FL‐GWB-3V3 is the reason that it isn't working, I plugged it into a breadboard and attempted to get the Arduino LCD example working:

http://arduino.cc/en/Tutorial/LiquidCrystal

However, nothing is happening. Is there anything nonstandard about the LCD controller chip in this module?

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Character LCDs / Problems with a NHD‐0420H1Z‐FL‐GBW‐3V3
« on: July 07, 2014, 11:52:27 AM »
I have an NHD‐0420H1Z‐FL‐GBW‐3V3 that I am having trouble getting working.

I have re-created the sample code for the "Example Initialization Program", and confirmed that I am sending 3.3 volt signals along all the appropriate pins. However, I seem to be unable to send any characters to the display - All I see are blocked out first and third lines.

I'm not sure where to go from here in terms of debugging. The only thing I've noticed is that in the sample code there is: "command 0x30 = Wake up". I can't find this command in the manual for the LCD driver, so I don't know exactly what it does.

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