Green Light Signal
Other popular Green Light Signal workflows and automations
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Post an CO2 Update on Slack for Your Team
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Trigger a HomeKit Scene When CO2 Levels Are Low
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Activate a smart fan or air purifier when CO2 levels improves
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Receive an SMS About the Air Quality
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BOCCO emo Alerts You When CO2 Levels Are Low
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Run a Shortcut When Your CO2 Levels Drop to Safe Levels
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Log Air Quality Events in a Google Sheet
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Announce CO2 Levels with a Recorded Audio Message
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Create your own Green Light Signal and Hacker News workflow
Create custom workflows effortlessly by selecting triggers, queries, and actions. With IFTTT, it's simple: “If this” trigger happens, “then that” action follows. Streamline tasks and save time with automated workflows that work for you.
15 triggers, queries, and actions
If CO2 Level Is Low
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires when CO2 Emissions level is low
New Ask HN story
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a new Ask Hacker News story is posted.
New best story
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a Hacker News story becomes a best story.
New comment by user
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a new comment is posted by the user you specify.
New job posted
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a new job is posted to Hacker News.
New Show HN story
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a new Show Hacker News story is posted.
New story by user
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a new story is posted by the user you specify.
New top story
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a Hacker News story becomes a top story.
History of Ask HN stories
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new Ask Hacker News story is posted.
History of best stories
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a Hacker News story becomes a best story.
History of comments by user
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new comment is posted by the user you specify.
History of jobs posted
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new job is posted to Hacker News.
History of Show HN stories
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new Show Hacker News story is posted.
History of stories by user
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new story is posted by the user you specify.
History of top stories
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a Hacker News story becomes a top story.
History of Ask HN stories
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new Ask Hacker News story is posted.
History of best stories
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a Hacker News story becomes a best story.
History of comments by user
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new comment is posted by the user you specify.
History of jobs posted
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new job is posted to Hacker News.
History of Show HN stories
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new Show Hacker News story is posted.
History of stories by user
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a new story is posted by the user you specify.
History of top stories
Query
A query lets your Applet retrieve extra data that isn't included in the trigger, so that your automation can include more complete or useful information.
This query returns a list of every time a Hacker News story becomes a top story.
If CO2 Level Is Low
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires when CO2 Emissions level is low
New Ask HN story
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a new Ask Hacker News story is posted.
New best story
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a Hacker News story becomes a best story.
New comment by user
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a new comment is posted by the user you specify.
New job posted
Polling trigger
Polling Applets run after IFTTT reaches out to the trigger service and finds a new trigger event. These trigger checks occur every 5 minutes for Pro and Pro+ users, and every hour for Free users.
This trigger fires every time a new job is posted to Hacker News.
GET STARTED
How to connect to a Green Light Signal automation
Find an automation using Green Light Signal
Find an automation to connect to, or create your own!Connect IFTTT to your Green Light Signal account
Securely connect the Applet services to your respective accounts.Finalize and customize your Applet
Review trigger and action settings, and click connect. Simple as that!Upgrade your automations with
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More on Green Light Signal and Hacker News
About Green Light Signal
Powered by data from National Grid you can now make products and services that harmonises with the CO2 emissions coming from the electricity generation in Great Britain. When the emissions are low in your particular region this service will simply give you the Green Light.
Powered by data from National Grid you can now make products and services that harmonises with the CO2 emissions coming from the electricity generation in Great Britain. When the emissions are low in your particular region this service will simply give you the Green Light.
About Hacker News
Hacker News is a social news website focusing on computer science and entrepreneurship. Turn on Applets to track top stories, keywords, comments and jobs.
Hacker News is a social news website focusing on computer science and entrepreneurship. Turn on Applets to track top stories, keywords, comments and jobs.