I already replied, but it hasn't sown up... so I must have sent it after you moved it...

Anyway, yes I can turn the backligh on and off... I can clear and do a few other things...

What I can't do is write text to the LCD...
and what I need to know is what register the text should go to, if I ...

I am unable to send text to the LCD0821.

The manual is very sparse as I2C data/info goes... however I have been able to get everything working, except the display of text.

All commands have their registers, but I can't see any mention of what register I'm supposed to be writing to in order to send ...