Zitat Zitat von ubergeek
DigitalPort 7 an SD20 Port 15
DigitalPort 8 an SD20 Port 14

Basic Programm:

define SDA Port[1]
define SCL Port[2]
.........
this could be the problem
Try changing your program to..

define SDA Port[7]
define SCL Port[8]

Greetings,
H.J. Windt