As might be expected, the module shows two lines of 16 characters each. This is actually his only task and fulfilled it perfectly. I did not know what you could have done better.
Note:
Who this module for its Raspberry Pi or similar buys and not as the "Electric Man" is, which could possibly have a few problems. Instructions on how to wire this display and puts it into service can be found on the net / YouTube. Up to the point there should be no problems. I have soldered to the cable module off. Since you should make sure that between the contacts no connections are made. Whether through the solder or the flux. Here I had only a mistake somewhere, which is why the display left to right to show the text "resets" has.
On the brightness or backlight must also be careful. The one regulates by resistors. Is something stupid if you have both the same error and you can not assign. For brightness perhaps a potentiometer would be quite useful because you do not have play around with different resistors here. It should be noted that it apparently LCD display is no more than 5V tolerated. Anyway, it's still a 470-510 ohm to have not bad in front of the potentiometer resistance. A look at the data sheets of the components with which you work is also never wrong.
