Thank you for your answers.
I few reasons why I want to do it.
- The X21 comes as a kit which I don't want and need. They don't sell them individually, they are designed and programmed for the specific kit. Once you spend $300 and want to change controllers, you're done, can't do it.
- X21 is locked in a specific configuration. I am a software Engineer and I think I could do better for my self.
- I have an idea to expend this board with other features like, BL to change the configuration fro the phone app. Add alarm logic etc.
So I would like to take this opportunity to learn and to create some DIY Switch Controller projects and possibly I will get some community attention that is looking for something like that as well not spending $300+.
pt 4. I looked at this MOSFET and circuit
https://protosupplies.com/product/d4184-mosfet-control-module/The way a LOAD is connected is between 12V of the battery source and the MOSFET LOAD. In my case, I need to connect to the GND and the 12V output. But you already gave me some homework to do.
Also question about the above MOSFET. They say:"This MOSFET module with optoisolation uses the
D4184 N-Channel logic compatible MOSFET with low Rds(on) for moderate to higher current low-side switching applications." but also say "This biases the gate at 50% of the power supply voltage which turns on the MOSFET. If a 12V power supply is used, the gate will be at 6V."
So I don't think it is a
Logic as I will need at least 6V to turn it on. I will research the types you mentioned in your respond soon.
Thank you