yup. anyway you bring power over 5v USB(use VBUS pin).
second thing: transistor have no GND, and even when it will self activating due load on emitter side and i dont know if transistor will full open;
third: pull up resistor, i have no datasheet, may be it's ok.
in all three commutators you use different type of switch, is it not easier to use 3 similar relays? and use power bypassing MCU, remember it is not PSU.
You have 3 switches, 2 relays and 1 transistor, what is the load for each switch?
Relay #1?
Relay #2?
Transistor?
This SSR is for switching AC, won't work for DC.
https://a.co/d/9cn5CKs
In simplistic terms you can think of it that way.
Driving loads that require 5V or higher currents is always a major problem when using the low power 3.3V processors.
It may be simpler and cheaper to buy an Arduino that has 5V outputs with high current like the Uno, Nano, or mini. Then you can use just about any DC relay or MOSFET module that you can find.
Another solution is one of these pololu modules. It will work with the feather.
Otherwise, you will need to build something like this:
You may need a resistor in series with the LED
You have 3 switches, 2 relays and 1 transistor, what is the load for each switch?
Relay #1?
Relay #2?
Transistor?This SSR is for switching AC, won't work for DC.
Sorry to have made this confusing. I only need to control two components. What I'm outlining is the three different approaches I've attempted. The DC relay was purchased after I purchased the AC one, not knowing what I was doing. The transistor was attempted because I couldn't either relay to do what I wanted. Ultimately, I think solving this for one external will give me all I need to solve it for the other, so for simplicity, it's probably best to just try for one right now.
Another solution is one of these pololu modules. It will work with the feather.
That's very compelling for sure. I was under the impression, though, that the MOSFET would have a maximum voltage capacity that would quickly be exceeded by these DC power supplies. Is that not the case?
This is super helpful, thank you. I didn't realize that VBUS was outputting 5v. I can certainly try that.
Post links to information (voltage, current, wattage) for those components.
You are absolutely correct, I clicked on the wrong module.
The one you want is this one
will handle 32V and 2A
It occurs to me there's another way to skin this cat. Since I have a 2-channel solid state relay that's suitable for AC, Wouldn't it be possible to fashion an enclosure that comprises the parts plus a power outlet? Then I'd simply plug in the DC adapters and use the relay to control power switching to the outlets themselves?
Though if I've already erroneously run DC through it is there a chance it's been damaged?
Why? You still need a transistor driver circuit, might as well use the DC relay
Thanks for this! The VBUS pin did it! I just had a chance to try this out and it worked flawlessly. I guess the 3.3v was the culprit. Glad to know for the future that VBUS will output 5V. I suppose that could have been a useful application of my multi-meter - to measure the output of each pin and find a 5V signal somewhere.
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