Homebridge-gpio-blinds NPM

Homebridge GPIO Blinds

Homebridge plugin to control blinds via Raspberry Pi GPIO pins.

Motivation

I've got 16 windows with blinds in my house. Controlling them manually would be simply annoying. See how it works -> https://youtu.be/jc-fZn0_fBA

Installation

install homebridge npm install -g homebridge
install this plugin npm install -g homebridge-gpio-blinds
update your ~/.homebridge/config.json file (use sample-config.json as a reference)

Configuration

Sample accessory:

"accessories": [
  {
    "accessory": "Blinds",
    "name": "Garage",
    "pinUp": 5,
    "pinDown": 11,
    "durationUp": 13000,
    "durationDown": 13000,
    "durationOffset": 1000,
    "pinClosed": 17,
    "pinOpen": 18,
    "activeLow": false,
    "reedSwitchActiveLow": false
  }
]

Fields:

accessory must always be Blinds
name room with blinds, e.g. Garage
pinUp pin for moving up (use gpio numbering, not physical)
pinDown pin for moving down
durationUp milliseconds to open blinds completely
durationDown milliseconds to close blinds completely
durationOffset optional, default: 0 milliseconds added to durationUp and durationDown to make sure that blinds are completely open or closed
pinClosed optional pin connected to reed switch which is active when blind is closed, see reedActiveLow
pinOpen optional pin connected to reed switch which is active when blind is open, see reedActiveLow
activeLow optional, default: true true: relay activated by low state (0), false: relay activated by high state (1), affects pinUp, pinDown
reedSwitchActiveLow optional, default: true true: reed switch activated by low state (0), false: reed switch activated by high state (1), affects pinClosed, pinOpen

Raspberry Pi setup

Raspberry Pi 3 (should work with all versions)
GPIO expander - because I have more blinds than pins on raspberry pi (each blind takes 2 pins - singal up and down)
Relay module
Power supply for relay module
Some wires