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Highlights
Quality
Do not mix up the 3pin header connections with the 4pin header connections when the jumper is removed
I would have given 5 stars if not for the quality control after manufacturing
No quality problems on the three that ive gotten
Price
Great price worked first time and every time since in an industrial situation
Packaging/appearance
If you leave the jumper in place connecting jdvcc and vcc then the 4pin header vcc also powers the electromagnet and the separa... Read More
Then i used the 5v from the computer power supply to power the electromagnets using the jdvcc and gnd pins on the 3pin header l... Read More
Competitiveness
Theres another brand that works with gpio 3
Im using an esp32 to control the relays
Overview
- How are reviewers describing this item?
great, good, three, low and quality. - 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 166 reviews as of our last analysis date on Mar 13 2022.
Helpful InsightsBETA
Posted by a reviewer on Amazon
Two out of three relay boards worked as expected out of the box
Posted by a reviewer on Amazon
Others reviewers had similar issues
Posted by a reviewer on Amazon
I checked the signal paths with an oscilloscope and found a short of two pins due to a solder bridge on the bottom of the board
Posted by a reviewer on Amazon
After using a small screw driver to scrape of the solder bridge the board worked as it should
Posted by a reviewer on Amazon
I would have given 5 stars if not for the quality control after manufacturing
Posted by a reviewer on Amazon
These are good they are cheap and they work correctly
Posted by a reviewer on Amazon
Note these will activate when it detects a 0v output digital low state so in other words they work the oppposite as your average relay
Posted by a reviewer on Amazon
Great price worked first time and every time since in an industrial situation
Review Count History
Price History
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