I have several PCF8574P interface chips, this is an i2c to 8 I/O pins. You can use them for input or output and I have had great success with them when I was programming in python. I wanted to use them with Node Red, but I cannot seem to get a functional addition to the palette. I found: node-red-c…

I_iam 13 May 2020 01:10 7

Maybe this may help?

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PCF8574P Chip via i2C

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