crgarcia12
commented
6 months ago Hi @spplecxer, those are very good questions
- This PCB can control 4 different circuits. It is very easy to extend it, I did an 8 one as well. Every circuit can have as many switches/outlets/lights as you want, but they will all turn on/off together.
- The PCB has pin headers for you to do everything externally if you want. For example, you could decide to not to add the PowerSupply or the relays, and use the pinheaders to connect to them. The same goes for the ESP32. I originally started with your same idea in mind, but after a while I realized that connecting low-voltage things around in a DIN rail were not very optimal and a small mistake can do a big boom, so I changed my mind and decided to make one PCB with everything on it and use high quality components to make it last (not like Shellys or all those cheap crap that burns all the time). For example, if you look at the PS or the relays I selected, they are very good ones and I expect them to last long. I also added many fuses with holders, so no need to solder to replace them. These also had other consequences, for example, the PCB is quite small! it has everything in in ~ 8x8cm
In the other hand, if you want to use external PS or relays boards (which I do for other projects like this one: https://github.com/crgarcia12/electronics-workbench-controller) it should be easy to modify
Let me know what you think!
spplecxer
First question: What if I wanted to control multiple lights or power outlets? Second question: What if I wanted to make every component serviceable/replaceable without having to unsolder/solder anything? I plan to use a separate esp32 board, separate relay board, even single relay boards (din mounted), separate power supply... I'd like to have your take on this way of doing it. Thanks.