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PCA 8574 I/O expander

Question asked by Deekshith K V on Aug 12, 2019
Latest reply on Aug 16, 2019 by Lisette Paulina Lozano Gomez


I am using PCA 8574 I/O expander along with linkit 7688 module. I have both input and output ports in this I/O expander(P0 to P3 as input, P4 as output).

How can I configure this using mraa library?

How can I write value to this output port only?


Also I need to configure interrupt for these inputs using I2C interrupt which is connected to Linkit 7688.

please help.