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Support Forum for the IO Pi and IO Pi Plus

The IO Pi Plus from AB Electronics is a digital I/O expansion board designed for the Raspberry Pi. It features 32 digital input/output channels, which are controlled via the I²C bus. The board uses two MCP23017 16-bit I/O expanders, allowing for easy expansion of the Raspberry Pi’s GPIO capabilities.

The board is stackable, meaning multiple boards can be added to a single Raspberry Pi, providing up to 128 I/O ports.

Reading 32 pins

Posted in IO Pi and IO Pi Plus, last reply 31/12/2019

Replies: 6

Input capacity of each bank

Posted in IO Pi and IO Pi Plus, last reply 01/12/2019

Replies: 1

Newbie: How to connect multiple IO Pi Plus together

Posted in IO Pi and IO Pi Plus, last reply 21/11/2019

Replies: 1

Assign an IO Pi Plus Pin to a Variable

Posted in IO Pi and IO Pi Plus, last reply 17/11/2019

Replies: 1

Interrupts doesn't work in C

Posted in IO Pi and IO Pi Plus, last reply 22/08/2019

Replies: 2

IO Pi Plus External Power Supply

Posted in IO Pi and IO Pi Plus, last reply 27/06/2019

Replies: 6

IO Plus with hyperpixel display

Posted in IO Pi and IO Pi Plus, last reply 17/06/2019

Replies: 2

IOPi tutorial 3

Posted in IO Pi and IO Pi Plus, last reply 03/06/2019

Replies: 1

Interrupts / callback not working as expected

Posted in IO Pi and IO Pi Plus, last reply 23/05/2019

Replies: 5

documentation question

Posted in IO Pi and IO Pi Plus, last reply 24/04/2019

Replies: 2

OSError : [Errno 121] Remote I/O error

Posted in IO Pi and IO Pi Plus, last reply 18/04/2019

Replies: 4

Strange behavior with pin 2 and 3

Posted in IO Pi and IO Pi Plus, last reply 03/03/2019

Replies: 5

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