With the caveat that its only been running a few hours, seems good so far. Very simple and easy to connect to my 3.3 Volt Arduino Nano 33. I used 5 volts to power the relay and a 3.3v pin for signal and that seems to work just fine.
If I wanted to nitpick, it would be nice if it had solder holes and not just screw terminals. Screws are good for my breadboard prototype; not so much on my final design. So I will try to remove the screw terminals by de-soldering.
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This Item  HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger |  |  |  |  |  | |
| Price | $7.39 | $6.99 | $18.99 | -21% $5.64 Typical: $7.10 | $7.99 | $13.99 |
| Delivery | Get it as soon as Saturday, Jan 6 | Get it as soon as Saturday, Jan 6 | Get it as soon as Sunday, Jan 7 | Get it as soon as Saturday, Jan 6 | Get it as soon as Saturday, Jan 6 | Get it as soon as Sunday, Jan 7 |
| Customer Ratings | ||||||
| Sold By | HiLetgo | Aediko US | CenryKay | CHENBO | ELEGOO Official US | Valefod-direct |
| contact type | Normally Open | Normally Open, Normally Closed | Normally Closed | Normally Closed | — | Normally Open, Normally Closed |
| max switch current | 10 amps | 10 amps | 10 amps | 10 amps | 10 amps | 10 amps |
| specification met | Vcc | Ma | Vcc | — | — | — |
250 volts | 250 volts | 12 volts | 250 volts | 250 volts | 250 volts | |
— | — | — | — | — | — | |
— | — | — | — | — | — | |
| coil voltage | 5 volts | 12 volts of alternating current | 12 volts | 5 volts | 5 volts | 5 volts |
| operation mode | Automatic | Automatic | Automatic | Automatic | Automatic | Automatic |
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Reviewed in the United States on October 26, 2022
Fast and secure shipping in these. When I opened the package it was a pleasant surprise to find that the pieces were individually bagged in Mylar ESD protection packs. So far, I have only opened one and the quality feel of the plastic made me confident that I can trust that one to work. As the two-pack has two of the same items, I am just as optimistic the second one will perform in my hand the same.
Most easy hookups on this! See my schematic picture.
With the chip shortages and rising price of oil, I just know these can only go up in value. That brings me to the reason one star was deducted. These are currently being sold at the same price as I paid. Good news for you, bad news for me. Buyers, don’t miss out!
Most easy hookups on this! See my schematic picture.
With the chip shortages and rising price of oil, I just know these can only go up in value. That brings me to the reason one star was deducted. These are currently being sold at the same price as I paid. Good news for you, bad news for me. Buyers, don’t miss out!
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Reviewed in the United States on December 19, 2023
Works very well / shipping not so great
Reviewed in the United States on December 19, 2023
Some how the units work as they should but, as you can see in the picture the package was not protected with bubble wrap or a small box. So expect the one that you order to be damaged. But for the price can't beat it.
Reviewed in the United States on December 19, 2023
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Reviewed in the United States on April 18, 2023
Very good relay module. It is tiny and sturdy. If used respecting parameters described, there should not be any problems. I am currently using it with an esp32 to control my lawn water system. I am very happy so far.
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