What does this mean?Pros & Cons
Pros
The only downside is the trace spacing between the low voltage and high voltage side is a bit low.
Highlights
Quality
These have so much potential you can never really stop thinking of potential use cases!
This module has a pc817 optocoupler on it, so i found this odd as someone was clearly thinking about isolation, but i guess mod... Read More
This module doesn't have anything beyond the relay driver, so no coprocessors or anything to get in the way.
The esp-01 form factor doesn't give a lot of room for io, but when you want a wirelessly-controlled 10 amp switch for low-v dc ... Read More
Price
The low price makes you not worry too much that they could be doing more.
I bought these as a cheap practice device for my wifi course.
Not a big deal, though, as this is a wireless module that's not a problem, isolation for safety isn't needed.
Overview
- How are reviewers describing this item?
low, cheap, potential and controlled. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has discovered that over 90% high quality reviews are present.
- This product had a total of 24 reviews as of our last analysis date on Oct 15 2024.
Helpful InsightsBETA
Posted by a reviewer on Amazon
These are basic spdt relay modules with the relay controlled by io0 from the module
Posted by a reviewer on Amazon
This module doesnt have anything beyond the relay driver so no coprocessors or anything to get in the way
Posted by a reviewer on Amazon
I didnt try the stock firmware at all i immediately reflashed them to tasmota
Posted by a reviewer on Amazon
This module has a pc817 optocoupler on it so i found this odd as someone was clearly thinking about isolation but i guess module size won the battle or the circuit pcb was redrawn by someone who didnt understand why the pc817 was there
Posted by a reviewer on Amazon
Not a big deal though as this is a wireless module thats not a problem isolation for safety isnt needed
Posted by a reviewer on Amazon
Just know that when planning the 5v supply that side should still be insulated as if its line voltage
Posted by a reviewer on Amazon
I bought these as a cheap practice device for my wifi course
Posted by a reviewer on Amazon
Ended up liking them so much i have now used one for every device i want relayed to 110v
Review Count History
Price History
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