issue using LCD with I2C backpack

[peterhalloway]

Hi Martin the jumper is on and I have tried it on a couple of LCD's with the same result

Pete

[peterhalloway]

Hi Martin the jumper is on and I have tried a couple of different LCD's both giving the same result. I have been talking to labcenter (proteus) as your guys possibly you also use Proteus I will also PM something they emailed to me reference this issue.

Pete

[medelec35]

Hi Pete.
I have looked more closely at your project file an spotted the issue, it is not a bug.
Within properties, You have got Use Backlight set to No.
That means that if the Backlight has been previously turned off or from new never turned on, then the Backlight won't be lit.
What you need to do is change Use Backlight to Yes and then before the main loop add BacklightControl and set to 1.
There is no need to do that for LCM1602 as that has the backlight enabled and set to 1 as a default.

[peterhalloway]

Hi Martin
I believe you have confirmed their are issues with the LCD's can you give me an update of when these will be fixed please.

Many thanks

Pete

[medelec35]

Hi Pete.

I have looked more closely at your project file an spotted the issue, it is not a bug.

Also I2C components don't work as expected on the 16F690.
Apart form that the LCD should work as expected.