I have used RemoteXY a few times and am very impressed with it. RemoteXY among other things allows one to use their smartphone/tablet to interact wit...

I got a message that a new reply was posted to my original post from 2021. I have since found a Dev board that contains an ESP 32 and four relays. T...

The above has been in service no for several days and seems to work fine. The range between my phone and the ESP32 varies. As expected a "line of si...

Welcome aboard. I'm an older yet guy (75). I do have a little training as I attended a vocational school after taking a two year leave of absence fr...

Thanks for the replies. I was able to test the project yesterday and I'm fairly confident of its success although obviously it hasn't "stood the test...

Had some time today. I connected the 3.3V relay board to my Power Supply Breadboard box from Tech School. This was our first project and we used it ...

Thanks so much for the informative replies. I did not have time to try a different power supply. As stated I was using a header type power supply fo...

I'll try to get an actual picture. My relays were advertised as 3.3V. Where other relays have had 12V or 5V written on the relay these have 3.3. Wh...

@inq You bring up some good points. I do not have the "safety beam" sensors that most garage door openers have. The opener could be equipped with th...

@inq Thanks again for the detailed and quick response. I notice you use the method of repeating what you thought I said to confirm your understanding...

@inq Thank you so much for the very detailed reply. I have read it a few times and find that much of it agrees with my previous thinking but there ar...

I've watched Bills excellent tutorial about getting started with the ESP32. I thought I understood the two different Wi-Fi approaches, Station and So...

@zander Yes, I'm seeing your posts and appreciate your efforts. It just seemed like quite a coincidence that I happened to watch Bill's tutorial whi...

Woke up last night with one of Bill's Tutorials on my TV. It happened to show some of the many uses of the old 555 timer IC. One of the uses was a l...