The LCD 16x2 I bought it's not working and I don't know why. I'm using I2C module and an arduino nano. I'm a beginner with this kinda thing. Please help. The circuit images and the code are attached.Already tried to run the I2C scanner but it showed something like '0 devices found'. The code I used was an example from the LiquidCrystal.h library. LCD only show the first line filled with white blanks.
Lemesgilberto:
The circuit images and the code are attached.
Are they?
To what did you attach them? The computer monitor? The bedroom door? 
Cross posted here.
OK, dead thread. 