Hello, I am thinking about implementing a PCA9564 for a problem i am having with a system of arduino ATMega2560s. Basically, i am using this to communicate between 64 slave devices and one master device, however each slave device has 8 I2C slave I/O expanders (MCP23017). I am having alot of issues …

PCA9564 parallel bus to i2c-bus controller

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