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  • Each kit includes the parts shown here.
  • This is what a stack of PiRyte Mini Boards look like.
  • This is what a stack of PiRyte Mini Boards look like.

PiRyte Mini 8 In 8 Out Digital I/O Port

$29.20
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Product Description

What is it?

PiRyte Mini 8 In 8 Out Digital Output Extender adds eight current protected active low inputs and eight open collector outputs to the Raspberry Pi via an MCP23S017 SPI bus I/O extender.

Specifications

  • 8 channels of active low current protected inputs
  • 8 channels of open collector outputs over
  • Two RJ50/RJ45 10 pin connectors (10p10c cables available separately). Cabling allows for quick connect/disconnect and clean organization of wiring.
  • Uses either Raspberry Pi provided +5 VDC or externally provided power to run LEDs, relays, etc...
  • External power is diode protected from reverse polarity
  • Conforms to the Raspberry Pi HAT footprint and is stack-able with other PiRyte mini boards or third party boards.
  • On board address selects allows for up to sixteen Mini 8 In 8 Out extender boards to be attached to one Raspberry Pi.
  • The on board MCP23s17 can be programmed using the Breezy4Pi application, or with the Python, Java, or C languages.
  • Currently available as a kit only with options for either a 40 pin or 26 pin GPIO stacking header.

Why did you make it?

I needed an interface board to be able to control various parts of my model railroad using the Raspberry Pi, such as lighting and relays. I also needed to read block detectors, switch inputs, etc... I didn't see any product out there that is stack-able and uses cabling, which for me, makes for neater and better installations.

What makes it special?

I decided to break out the digital output function from the PiRyte Multi-S and offer this as a kit to keep costs down for the hobbyist.

Additionally, this board is stack-able so you can mix and match with other HAT conforming boards. For instance, I run this board with no problems with Adafruit's 16 channel PWM board.

Finally, I like to have neat, secure wiring runs so I'm a big fan of using cables. I provide the 10p10c cables in various lengths as a convenience. The ability to plug and unplugged cabling without tearing apart a Raspberry Pi stack is a major plus for me. Imagine the added work needed to unstack a bunch of boards on a Raspberry Pi so that you can reach the screw terminals for individual wires and then keep track of all the wires?

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