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PRO IOByte8
Profile：The goal of the IOByte is to create a better breakout for the PCF8574 GPIO Extender mostly focused on quickly deploying relays and switch panels via i2c.
License: CC-BY-SA 3.0
Description
The initial idea behind the PCB design was based on having it fit directly on a common 8-Channel relay board. Existing breakouts generally would require 10 DuPont leads (or other wire interface) to the relay board. Solder on a 10p female header, connect I2C and you have a super fast and cheap deployment.
The IOByte can also act as a binary input device. The ground row of pins makes it easy to deploy simple switches connected from and of the 8 open-drain pins to ground. Quickly deploy switch panels with your favorite hardware.
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schematic diagram
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