About 11:30 on Thursday I got a call at work from my very awesome neighbour Joe asking if I wanted my garage door closed. It was open for several hours…not cool. This is the second time this has happened as the roll up door senses load and will reverse if it thinks something is amiss. Normall…

Denwood, Good work! Are you aware that you can set up a routine that will automatically close the door for you if you accidentally left it open? You can have this based on time open (if the door has been open for xx minutes, have the relay close the door), or based on no activity in the garage. Y…

you could use my smart which does sense if the door doesn’t close and alerts you… ie [image] New smart app to link the virtual/simulated garage door device with two actual devices SmartApps & Automations Also, I made this to demonstrate it’s usage and how it appears in t…

Btcompute, LG, thanks so much. I need to sort out a better reminder system than I have now, which is just a notification every 15min if the door is open. How would you set up the no activity routine? Larry, the only problem I can see is that the current keypad has no discrete “down” mode. If the…

Larry, I get it! I installed your app with the code tweaks. It works perfectly and provides the last bit of intelligence to the setup that was missing. Thanks so much. [image] New smart app to link the virtual/simulated garage door device with two actual devices SmartApps & Auto…

To notify if left open for a certain amount of time use either rule machine or the pushover notify smartap

Just a heads up if you do a similar “hack” with your door controller. I found the door control "dead’ yesterday as for whatever reason (likely some SmartThings strangeness) the LFM20 relay was left “ON”. This drained the CR2032 lithium cell in the wireless keypad. The relay is programmed as a mom…

Nice writeup. I just stumbled upon this cause I have the same GDO. I’m in Canada, and it’s such a nuisance because this GDO isn’t compatible with your typical Homelink remote in cars. FYI, if you remove the 6 screws cover, you will see some contacts use for a “Doorbell” type switch. You could hav…

ITguy, good tip…I don’t recall seeing those contacts behind the door motor access plate, but for anyone looking in, a good alternative if the keypad hack is not desirable :slight_smile: Btw, the issue with the wireless system is frequency. If you want Homelink, you can purchase an adapter unit fro…

Roll Up Garage Door LFM-20 Hack with SmartThings

Devices & Integrations Connected Things

Lgkahn (Larry) March 28, 2016, 6:22pm 4

you could use my smart which does sense if the door doesn’t close and alerts you…

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Roll Up Garage Door LFM-20 Hack with SmartThings

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