Raspberry Pi MCP23017 Port Expander Board Kit

HobbyTronics Raspberry Pi MCP23017 Port Expander Board Kit
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Price: £3.60
(£3.00 + VAT)
Availability: 7 - 10 days
Model: RPI-PORTEXP
Manufacturer: HobbyTronics
Average Rating: Not Rated

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HobbyTronics

Raspberry Pi MCP23017 Port Expander Board Kit

This useful kit contains the MCP23017 Port Expander chip and a breakout board which connects directly to our Raspberry Pi GPIO Breakout Board and plugs into a Breadboard. The Power and I2C connections are automatically made to the GPIO Breakout Board via a 5 way header socket so no breadboard wiring is needed.

Features

  • Connects directly to GPIO Breakout Board via 5 pin header
  • Pull up resistor on RESET pin of MCP23017
  • Pull down resistors on addess pins of MCP23017 to give default address of 0x20
  • Multiple boards can be linked together
  • Board dimensions: 51mm x 24mm

The 16-bit I/O port functionally of the MCP23017 consists of two 8-bit ports (PORTA and PORTB). The MCP23017 can be configured to operate in 8-bit or 16-bit modes

This is a kit and requires soldering.

The kit contains

  • Port Expander PCB
  • MCP23017 IC
  • IC Socket
  • 2 x 14 way header pins
  • 5 way right angle socket
  • 5 way right angle header pins

Documents

MCP23017 Port Expander Board Schematic
Raspberry Pi Raspbian Distro Installation and GPIO Port

Assembly  Instructions

The 5 pin right angled female header socket should be soldered onto the GPIO Breakout Board as shown below

Next, the 5 pin right angled male header pins should be soldered to the Port Expander Board. If you solder the header pins onto the board as they come they will be too high to mate with the header socket on the GPIO board. Instead, extract the pins individually using some pliers and insert the pins into the female socket as shown below.

They can then be soldered onto the Port Expander Board.

Next solder the IC Socket and 14 way header pins onto the board.

Picture below shows fully Assembled board connected to the GPIO Breakout Board and plugged into breadboard

 

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Raspberry Pi MCP23017 Port Expander Board Kit
Click to enlarge
Raspberry Pi MCP23017 Port Expander Board Kit
Click to enlarge
Raspberry Pi MCP23017 Port Expander Board Kit
Click to enlarge
Raspberry Pi MCP23017 Port Expander Board Kit
Click to enlarge
Raspberry Pi MCP23017 Port Expander Board Kit
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