Feature

●32 GPIO Expansion - This cascade expansion board supports 32 GPIO expansions.
●INFINITE CONNECTION - The IO expansion adapter module can be connected with the same module and infinity.
●Wiring PI API and Sample Code - Use wiring PI API and sample code.
●STABLE CONNECTION - SPI interface ensures the stability and smoothness of the connection.
●8-Bit input/output - Adopts 8-bit serial input and 8-bit serial or parallel output, super stable without staggering or disconnecting data transmission.


Description

Description
1. This module is specially designed for Raspberry Pi IO expansion modules which can effectively solve the problem of Raspberry cant transmit IO port enough.
Also, the module expands 32 IO ports using 4 74HC595 chips 3. As above, the top of the module can be cascaded with the IO expansion module to expand the theoretically unlimitedly

Specifications
Working voltage: 2.4 V 5 V
IO Voltage: 3.3V
Extended 32 unidirectional IO
SPI Connectivity
100MHz Standard Shift Out Frequency
8-bit serial input
8-bit serial or parallel output
-40C+ 85C and -40C+ 125C
Typical applications lattice screen, driver numeric display, drive matrix LED
How to use
Insert the module that shows RPI IN in on the silkscreen Do not reverse direction The correct direction of the insert module is above the PCB of the Raspberry Pi Module 8*4 header is Q0-Q31 expansion GPIO, connect to peripheral devices via Dupont Line header written EXT to the nearby silkscreen deploy GPIO to another module or same module cascade Can

Package List:
1 x GPIO Extension Module