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122 lines
4.1 KiB
ReStructuredText
122 lines
4.1 KiB
ReStructuredText
Dual relay cover motor control
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The following is a possible configuration file for common covers that use a motor with 2 inputs. Only one should be powered at a time (interlocking) to either move the cover up or down. For this the `Sonoff Dual R2 <https://www.itead.cc/sonoff-dual.html>`__ can be used which has two independent relays. Additionally this configuration allows the single button on the Sonoff to control the motion by cycling between: open->stop->down->stop->...
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These kind of motors automatically stop when the end of the cover movement is reached. However, to be safe, this automation stops powering the motor after 1 minute of movement. In the rare case of the end-stop switch in the motor failing this will reduce the risk for damage or fire.
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Of the four main components (button sensor, 2 relays switches and the cover), only the cover will be visible to the end-user. The other three are hidden by means of not including a ``name``. This is to prevent accidentally switching on both relays simultaneously from MQTT/Home-assistant as that might be harmful for some motors.
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.. note::
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Controlling the cover to quickly (sending new open/close commands within a minute of previous commands) might cause unexpected behaviour (eg: cover stopping halfway). This is because the delayed relay off feature is implemented using asynchronous automations. So every time a open/close command is sent a delayed relay off command is added and old ones are not removed.
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.. code:: yaml
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esphomeyaml:
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name: cover
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platform: espressif8266
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board: esp01_1m
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board_flash_mode: dout
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# required until next release (>1.6.2)
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library_uri: 'https://github.com/OttoWinter/esphomelib.git'
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wifi:
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ssid: '***'
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password: '***'
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mqtt:
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broker: 'mqtt'
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username: ''
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password: ''
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logger:
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ota:
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binary_sensor:
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- platform: gpio
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pin:
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number: 10
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inverted: true
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id: button
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on_press:
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then:
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# logic for cycling through movements: open->stop->close->stop->...
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- lambda: |
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if (id(cover).state == cover::COVER_OPEN) {
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if (id(open).value){
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// cover is in opening movement, stop it
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id(cover).stop();
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} else {
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// cover has finished opening, close it
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id(cover).close();
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}
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} else if (id(cover).state == cover::COVER_CLOSED) {
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if (id(close).value){
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// cover is in closing movement, stop it
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id(cover).stop();
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} else {
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// cover has finished closing, open it
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id(cover).open();
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}
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} else {
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// state of cover is not known
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if (id(open).value || id(close).value){
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// cover is either opening or closing, stop it
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id(cover).stop();
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} else {
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id(cover).open();
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}
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}
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switch:
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- platform: gpio
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pin: 12
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id: open
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- platform: gpio
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pin: 5
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id: close
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cover:
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- platform: template
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name: "Cover"
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id: cover
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open_action:
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# cancel potential previous movement
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- switch.turn_off:
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id: close
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# perform movement
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- switch.turn_on:
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id: open
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# wait until cover is open
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- delay: 60s
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# turn of relay to prevent keeping the motor powered
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- switch.turn_off:
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id: open
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close_action:
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- switch.turn_off:
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id: open
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- switch.turn_on:
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id: close
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- delay: 60s
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- switch.turn_off:
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id: close
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stop_action:
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- switch.turn_off:
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id: open
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- switch.turn_off:
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id: close
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optimistic: true
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See Also
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--------
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- :doc:`/esphomeyaml/guides/automations`
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- :doc:`/esphomeyaml/components/cover/template`
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- :doc:`/esphomeyaml/devices/sonoff`
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- `Edit this page on GitHub <https://github.com/OttoWinter/esphomedocs/blob/current/esphomeyaml/cookbook/dual-r2-cover.rst>`__
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