While looking in the manual for our garage door opener; trying to figure out how to adjust it. I noticed it had a couple of interesting I/O terminals. 24VDC LED strobe — I love LED strobes!
We have the Lift Master LM100EVS, which have the following I/O terminals:
- Multi-function door control (78EV)
- Push button
- Push button / security beam
- Security beam
- Door-in-door interlock
- Door-in-door interlock
- 24VDC LED strobe +
- 24VDC LED strobe ÷
![](https://blog.cavelab.dev/2021/04/garage-door-flashing-light/20200721_145803_hue6622efe16899ab2f505abd70f1a8cb2_317287_800x0_resize_q80_lanczos.jpg)
Looking in the product catalogue, they do sell a LED strobe — FLA1-LED:
![](https://blog.cavelab.dev/2021/04/garage-door-flashing-light/led-flashing-light-fla1-led.png)
And it just connects directly to I/O terminal 6 and 7:
![](https://blog.cavelab.dev/2021/04/garage-door-flashing-light/fla1-led-wiring-diagram.png)
I first measured the output, verifying that it was 24V when the motor is running. Next I went through my box of strobe lights, found a suitable 24V LED light, wired it to pin 6 and 7 — and voila:
Very useful indeed :nerd:
Last commit 2024-04-05, with message: More tag clean up.