HT16K33 led 14 segment backpack

[louislouis]

That default address I got from product listing:

IIC address: default address 0X70
A0, A1, A2,: IIC data address control terminal
IIC address calculation: 0X70+A0+A1+A2 (floating is 0, shortet A0 is 1, A1 is 2, A2 is 4,
for example A0 and A2 is shorted the IIC address at this time = 0X70+1+4=0X75)

[richard]

that's for a 7 bit i2c address scheme, arla arduino. pbp uses an 8 bit address for i2c