3 positions are handled either as text or bytes.
The range of the values x,y (1. control) and z (2. control) is between -100 and 100.
Byte Mode: 3 positions are transfered as 3 bytes (default)
ASCII Mode: 3 positions are transfered as text seperated by comma (ended by \n)
V1.1: Changed default mode
V1.2: Tablet modifications