node-red-contrib-pcf8574-cluster

Description

Control each pin of a PCF8574/PCF8574A/PCF8574P I2C port expander IC with Node-RED ( http://nodered.org ).

Installation

$ cd ~/.node-red
$ npm i node-red-contrib-pcf8574-cluster

Nodes

- cluster configurator

Configuration node for cluster.

Configuration:

• Addresses : Define the addresses of the PCF8574/PCF8574A
• Example : { "addresses": [32, 33] }
• Initial states : Define the initialStates of the PCF8574/PCF8574A
• Example : { "initial_states": [true, true] }
• Interrupts : Define the interrupts of the PCF8574/PCF8574A
• Example : { "interrupts": [{ "index": 1, "pin": 24 }, { "index":2, "pin": 25 }] }

- cluster in

Define a pin as an input.

Configuration:

• Cluster : Select cluster configuration
• Name : Define name
• Pin : Define input pin
• Inverted : true if this pin should be handled inverted (high=false, low=true)

- cluster out

Define a pin as an output.

Configuration:

• Cluster : Select cluster configuration
• Name : Define name
• Pin : Define input pin
• Inverted : true if this pin should be handled inverted (high=false, low=true)
• Initiate: The initial value of this pin, which will be set immediatly.

- pin value

Returns the current value of a pin.

Configuration:

• Cluster : Select cluster configuration
• Name : Define name
• Pin : Define pin which value you want to get.