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Messages - Dean

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Character LCDs / Re: NHD-C0220BiZ-FS(RGB)-FBW-3VM Test
« on: May 14, 2014, 11:53:51 AM »
The short lasted only a second or two but produced some smoke on my microcontroller board and left it inoperable. I've replaced the board and it is working again and I have ordered another LCD just in case.  I will try using the code you posted and I will read the comments in the ST7036 datasheet as SteveC suggested.

Thank you both for your help!

Character LCDs / NHD-C0220BiZ-FS(RGB)-FBW-3VM Test
« on: May 13, 2014, 01:12:36 PM »
I'm also having a problem with no display on my LCD as the last post SteveC had.  However, I initially had a short circuit and corrected it but could have toasted the LCD?  I tried switching the slave address from 0x78 to 0x3C with no avail.  My LCD pin input values are:

#2 - SCL = 3.28
#3 - SDA = 3.28
#5 - VDD = 3.29
#6 - VOUT = 2.75
#7 - C1+ = 3.10
#8 - C1- = .24

Is there anyway I can test the LCD to verify it is operational before I start debugging my code?

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