Hey everyone, I wanted to share my experience with controlling my LiftMaster garage doors using a Z-Wave relay. I’ve been working on this project for a while and finally got it sorted out, so I thought I’d walk through my journey in case anyone else is tackling a similar challenge.
Initially, I didn’t want to add a MyQ hub, so I looked for alternative ways to integrate my garage doors into my smart home setup. My openers use multi-function wall buttons, which made wiring a bit tricky since they rely on specific communication methods. I tried wiring in parallel to the PCB board, but it only worked for one door, and I ran into some unexpected issues with the second door.
After a few weeks of trial and error, I realized there might be a capacitance issue due to the extra wire length. This led me to think outside the box—literally! I remembered that my wife’s car had a spare garage door opener, which turned out to be a game-changer. I opened it up and found it could hold four switches, even though only one was installed. By triggering the switch with a jumper, I was able to control both garage doors using a single device.
This method has several benefits:
- No need to touch the wall switches, avoiding potential interference.
- The relay can be placed out of sight, which is great for aesthetics.
- I can eventually upgrade to a larger battery, reducing the need for frequent replacements.
I also discovered that setting the relay to “Garage” mode with a 2-second auto-off time works perfectly. This ensures the relay always returns to the off position, which is a safety feature I appreciate.
While testing, I noticed an issue when trying to close both doors simultaneously. To fix this, I added a 3-second delay between commands, and it’s been working flawlessly ever since.
If anyone has questions or suggestions, feel free to reach out! It’s been a rewarding project, and I’m happy to share what I’ve learned.
Cheers,
[Your Name]