SPI 23s17 x8 - 128 GPIO Board - V3  Serial Peripheral Interface (SPI)

for Raspberry Pi   model A/B &  B+ /2B /2B+ /3B /3B+ /4B

The 128 GPIO board provide 128 channel digital expansion board designed for use on the Raspberry Pi.

 The board is based around the MCP23S17 16-bit I/O expander from Microchip Technology Inc.

A pair of MCP23S17 expanders are included on the board allowing you to connect up to 128 digital 

inputs or outputs to the Raspberry Pi. The 128 GPIO board is powered through the host Raspberry Pi 

using the GPIO port and extended pins on the GPIO connector allow you to stack the 128 GPIO along with other expansion boards.

1. JP23  GA0 ~ GA7   U13 Port A       JP24 AA0 ~ AA7     U13 Port B

2. JP25  BA0 ~ BA7   U14 Port A        JP26 GB0 ~ BG7     U14 Port B

3 R61,R62,R63  ( for U13 Address select A0,A1,A2 )

4. R64,R65,R66 ( for  U14 Address select  A0,A1,A2)

5. U13 (21)  23017 -1  Port A,B           

6. U14 (22)   23017-2 Port A,B

7. pin out 2X10 , 

   Bank A(1-10)  GPIO (0,1,2,3,4,5,6,7,GND, INTA) 

   Bank B (1-10)  GPIO (0,1,2,3,4,5,6,7,GND, INTB) 

  ***         23s17 Datasheet

Download sample code & Data sheet


 23s17-cs0.py     n23s17-cs0.py  

 23s17-8port-s-v103.py     23s17-8port-s-v104.py

 23s17 Datasheet

   Download    User Manual                        


Package Content

  1x Rs-Pi SPI 23s17-8 - 128 GPIO board

1x manual 

Raspberry Pi spi 23s17-8 128 GPIO Board

  • Brand: Pridopia
  • Product Code: pi-spi-23s17-8-v3
  • Availability: 15
  • £77.99