There is no USPS pickup on Monday Feb 15th, 2016 because of President's Day. USPS orders placed after 11am EST Fri February 12th will go out Tuesday February 16. UPS orders will ship as normal.

16x2 LCD Pi Plate -- No Display
Moderators: adafruit_support_bill, adafruit

Forum rules
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
Please be positive and constructive with your questions and comments.

Re: 16x2 LCD Pi Plate -- No Display

by fidelite on Thu Feb 07, 2013 12:44 am

YOU ARE SUPAR GENIUS!

That did it, thank you VERY VERY much! Topside connectors FTL, I should have checked continuity between the pin I inserted in the header to the PAD of the LCD, not the pin in the hole on the LCD.

I still wish there was some kind of software method of narrowing this down, comparing the dump information from 0x20, exactly the same, still, I learned a whole lot.
fidelite
 
Posts: 10
Joined: Tue Feb 05, 2013 7:42 am

Re: 16x2 LCD Pi Plate -- No Display

by adafruit_support_bill on Thu Feb 07, 2013 7:09 am

I still wish there was some kind of software method of narrowing this down

Well, your read-back tests did help us narrow it down to somewhere between the port expander and the display. But since there is no read-back from the display, you need to do the last bit the old-fashioned way.

adafruit_support_bill
 
Posts: 45773
Joined: Sat Feb 07, 2009 10:11 am

Please be positive and constructive with your questions and comments.