32 GPIO Expansion Module 8-bit Input & Output IO Extend Adapter Module for Raspberry Pi Adapter Module Raspberry Pi GPIO Expansion Board Module

This module is specially designed for Raspberry Pi IO expansion Modules. It can effectively solve the problem, which is for Raspberry that can't send IO port sufficiently. And module uses four 74HC595 chips to expand 32 IO ports. As shown above, the top of the module will expand the IO of Raspberry Pi again that can be cascaded for more IO expansion modules to achieve theoretically unlimited expansion.

Port:
--Raspberry Pi 2*13port
--Raspberry Pi 2*13 cascade port
--Q0-Q31 expanded IO port

Specifications:
Working voltage: 2.4v-5v
IO voltage: 3.3v
Expanded 32 unidirectional IO
Connection through SPI
100 MHz( typical) shift out frequency
8-bit serial input
8-bit serial or parallel output
Specified from -40C to +85C and from -40C to +125C
Typical Application: Drive the lattice screen, Driver numeric display, Drive matrix LED

How to Use:
Insert the module that the silk screen says 'RPI IN'. Pay attention that don't make the direction reversed. The correct direction of insert module is above the Raspberry Pi's PCB; The 8*4header in the module are Q0-Q31 expanded GPIO, they can connect to the peripheral through the Dupont Line. The header which near silk screen write 'EXT' expand GPIO of Raspberry Pi, user can cascade the other module or the same module.

Package List:
1 * GPIO Expansion Module
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