Specification



Module power supply: +5 V



16 Digital I/O port comes with internal pull-up



Can be set to eight addresses (address range of 0x20 ~ 0x27)



8 modules simultaneously in parallel (IIC bus need to pull together)



Module Size: 56x53mm (2.21x2.08 in)

Board Overview

 

Plug = 0

Unplug = 1

A2

A1

A0

IIC Address

0

0

0

0x20 (Default)

0

0

1

0x21

0

1

0

0x22

0

1

1

0x23

1

0

0

0x24

1

0

1

0x25

1

1

1

0x26

1

1

1

0x27