added debugging of SIN driver output, probably found the positioning bug (format %02x instead of %2x)
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@74 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
modified text positioning: row starts with 0, column is hexadecimal
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@73 3ae390bd-cb1e-0410-b409-cd5a39f66f1f