Sparkfun SX1509 io expander

General
1

I have search but cant find any node red support for the SX1509 i2c module. I want to use the pwm function to expand my rpi io count and would like a simple node to set each of the pins on the module

2

Have you looked at the MCP23017 Port Expander ?
There are nodes for this chip

EDIT - PWM not so easy with 23017, however I have used these for PWM -
https://flows.nodered.org/node/node-red-contrib-iiot-rpi-pca9685

3

Hi I will have a look at them the reason I wanted to find out for the 1509 is because I have a few of them left over from an older project

4

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