https://github.com/heiso/knoblight

Knoblight is a little IoT light knob acting as a dimmer for some homeassistant lights.
https://github.com/heiso/knoblight

esp8266 home-assistant iot mqtt openscad stl

Last synced: 15 days ago
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Knoblight is a little IoT light knob acting as a dimmer for some homeassistant lights.

• Host: GitHub
• URL: https://github.com/heiso/knoblight
• Owner: heiso
• Created: 2022-09-22T16:10:36.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2023-01-29T17:16:40.000Z (almost 2 years ago)
• Last Synced: 2024-10-20T06:23:06.187Z (18 days ago)
• Topics: esp8266, home-assistant, iot, mqtt, openscad, stl
• Language: C++
• Homepage:
• Size: 2.02 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# KnobLight

Knoblight is a little IoT light knob acting as a dimmer for some homeassistant lights.

Once it's powered, it will connect to a wifi network and discuss with [Home Assistant (https://www.home-assistant.io)](https://www.home-assistant.io/) through [MQTT (https://www.home-assistant.io/integrations/mqtt)](https://www.home-assistant.io/integrations/mqtt/).



  

![scadview](pictures/scadview.png)

## Scad design

You'll need to clone this openscad [library (https://github.com/heiso/openscad-bits)](https://github.com/heiso/openscad-bits) in your openscad libraries folder (probably `~/Documents/OpenSCAD/libraries/` on mac).

## Arduino code

You should copy `src/secrets.tpl.h` as `src/secrets.h` and set your values before trying to flash to your esp8266

## HA automation example

Given we want to control lights in the area_id **room**

```yaml

- id: 'knoblight_dimmer'

  alias: Knoblight - dimmer

  description: 'Set brightness accordingly to knoblight turns'

  trigger:

  - platform: mqtt

    topic: knoblight/brightness/set

  condition: []

  action:

  - service: light.turn_on

    data_template:

      transition: 1

      brightness: '{{ trigger.payload_json }}'

    target:

      area_id: room

  mode: queued

  max: 5

- id: 'knoblight_btn'

  alias: Knoblight - btn

  description: 'Toggle lights on knoblight btn pressed'

  trigger:

  - platform: mqtt

    topic: knoblight/btn

  condition: []

  action:

  - service: light.toggle

    data: {}

    target:

      area_id: room

  mode: single

- id: 'knoblight_sync'

  alias: Knoblight - sync

  description: 'Periodically send the light brightness to the knob so it can stay up to date'

  trigger:

  - platform: time_pattern

    seconds: /10

  condition: []

  action:

  - service: mqtt.publish

    data:

      topic: knoblight/brightness

      payload_template: '{{ state_attr(''light.room'', ''brightness'') }}'

  mode: single

```

## BOM (Bill Of Materials)

1 KY_040_encoder  

1 Wemos D1 mini (esp8266)