I use LiquidCrystal_I2C and wire library with the examples, and I have found 4 examples but none willcompile, with one I got real close with only one error "does not name a type"
I'm having a similar issue, same board (Arduino UNO) and same lcd 20x4. I even got the sketch to compile and upload but I still end up with two black bars.. any suggestions??
to use a clean XP with 1.03 and only LiquidCrystal_I2C lcd(0x27,20,4);
New LCD library - Replacement for the original LiquidCrystal Library to control LCDs with different control interfaces: 4bit, 8bit, I2C, ShiftRegister, SPI comming soon. The library is faster than the original, more flexible and extendable.
The interface pc boards are all essentially the same as well. There are two almost identical ICs that can be used. The version with a 'A' suffix has a base address of 0x38 and the version without the 'A' (there may be other letters on each version) has a base address of 0x20. The board may or may not have jumpers available to change the address. The jumpers, if they exist, are typically solder blobs labeled A0, A1, and A2. If you are lucky there may be removable jumpers instead of the solder blobs. If you are even luckier there may be switches. I haven't seen either of these on the photographs posted lately.[/color]Don
OK, so it looks like luck is a bit of a player here.My 20x4 looks exactly the same as that alluded to above. Attached is the library I use with IDE 1.0.1 under XP.I can't recall where I got it, probably a link on eBay.
PCF8574 BIT HD44780 Function0 RS1 RW2 EN3 backlight (POSITIVE)4 D45 D56 D67 D7