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🌡️ 3-pack of hiletgo lm393 rain drops sensor with weather moisture monitoring, humidity sensitivity module, nickeled plate for arduino, 3.3-5v compatible logo

🌡️ 3-Pack of HiLetgo LM393 Rain Drops Sensor with Weather Moisture Monitoring, Humidity Sensitivity Module, Nickeled Plate for Arduino, 3.3-5V Compatible Review

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Revainrating 3.5 out of 5  
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3.5
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Description of 🌡️ 3-Pack of HiLetgo LM393 Rain Drops Sensor with Weather Moisture Monitoring, Humidity Sensitivity Module, Nickeled Plate for Arduino, 3.3-5V Compatible

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    The sensor uses high quality FR-04 double-sided materials, large area of 5.0 * 4.0CM, and nickel-plated surface, with oxidation resistance, conductivity, and life expectancy superior performance. Comparator output, the signal clean, good waveform, strong driving ability, more than 15mA. The raindrop board and the control board are separate, easy to lead the line. TTL level output, TTL output valid signal is low. Drive capacity of about 100MA, direct drive relays, buzzers, small fans, and so on. Adjust sensitivity by potentiometer.

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    Reviews

    Global ratings 11
    • 5
      3
    • 4
      2
    • 3
      3
    • 2
      3
    • 1
      0

    Type of review

    Revainrating 5 out of 5

    Ideal for many applications!

    I used one in the car to auto turn the wipers on and one in the yard to auto turn the water on. The third is still thinking about another application.

    Pros
    • Hands Free
    Cons
    • Style 90

    Revainrating 2 out of 5

    No Quality Control - Humidifier Parts and Accessories

    The control board had an apparent defect upon delivery. The resistor was only connected on one side. I'll update this review after I re-solder this part and see if the board lights up.

    Pros
    • Useful beyond intended purpose
    Cons
    • Expensive Insurance

    Revainrating 3 out of 5

    3.3V Not compatible

    I have tried this with ESP32 and ESP8266 which supply 3.3V and use 3.3V logic without success. I had to use a boost converter for the power and a voltage divider to get the output in the right range. Don't trust your rain sensor to work at 3.3V.

    Pros
    • Decent performance
    Cons
    • Expensive

    Revainrating 2 out of 5

    Look for loose/broken solder connections on the pins on the sensor board.

    All 3 worked fine after I fixed 2 sensor boards. The pins came from the traces so I had to solder a solid wire from the bottom of the pin to the start of the trace on the sensor board. Other than that, they seem to be working fine. I use the analog part to detect the presence of water.

    Pros
    • Looks good
    Cons
    • No automatic

    Revainrating 3 out of 5

    Rainwater is a poor conductor of electricity

    Unless it rains dirty in your area, you need to build a circuit that will set off the alarm. Rainwater is a poor conductor of electricity. It is basically distilled water created by the earth's water cycle. There are ways to build a circuit on the internet. It's up to you to do the research and do it. It's easy and cheap and the most fun way to learn!

    Pros
    • It's okay!
    Cons
    • Negative signal present

    Revainrating 5 out of 5

    Easily adapts to humidifier components and accessories

    Meets the need for a sensor that can be placed in tight spaces (within a stud wall) to test for moisture ingress. Sensor to use Arduino. Simply use the included wires to connect to an ohmmeter that reads "infinity" or "open circuit" until the drop blocks the traces on the sensor. I wrapped the sensor in the top of a cotton sock to absorb moisture.

    Pros
    • Rugged design
    Cons
    • Transparency

    Revainrating 4 out of 5

    Soldering is VERY delicate

    I read reviews that the soldering isn't the best but I was very surprised when my order arrived and already 2/3 of the sensor solders broke right in the mail. Luckily, the third one only lasted and worked for a few minutes. When I connected the sensor, everything worked. Then I unplugged it and plugged it back in and CANCELED THE THIRD SOLDER! I think I have to return this item but I would really appreciate it if the seller would just send me another one. I'm a little disappointed but I won't…

    Pros
    • cool product
    Cons
    • Something different

    Revainrating 2 out of 5

    Look for loose/broken solder connections on the pins on the sensor board.

    All 3 worked fine after I fixed 2 sensor boards. The pins came from the traces so I had to solder a solid wire from the bottom of the pin to the start of the trace on the sensor board. Other than that, they seem to be working fine. I use the analog part to detect the presence of water.

    Pros
    • Comparator output, clean signal, good waveform, good controllability, more than 15mA
    Cons
    • Not the best

    Revainrating 3 out of 5

    Rainwater does not conduct electricity well

    If not suitable for your area dirty rain, you need to build a circuit that will set off the alarm. Rainwater is a poor conductor of electricity. It is basically distilled water created by the earth's water cycle. There are ways to build a circuit on the internet. It's up to you to do the research and do it. It's easy and cheap and the most fun way to learn!

    Pros
    • The sensor uses high-quality FR-04 double-sided materials, large area 5.0*4.0cm and nickel-plated surface, oxidation resistance, conductivity and life expectancy excellent performance
    Cons
    • vulgarity

    Revainrating 5 out of 5

    Easily adaptable: humidifier parts and accessories

    Fulfilling the need for a sensor that can be placed in hard-to-reach places (inside a stud wall) to test for moisture ingress, an application which does No module required connected to the sensor to use Arduino. Simply use the included wires to connect to an ohmmeter that reads "infinity" or "open circuit" until the drop blocks the traces on the sensor. I wrapped the sensor in the top of a cotton sock to absorb moisture.

    Pros
    • Sensitivity adjustment via potentiometer
    Cons
    • New competitors have emerged

    Revainrating 4 out of 5

    The soldering is VERY delicate

    I've read reviews that the soldering work wasn't the greatest but I was very surprised when my order arrived and already did 2/3 of the soldering points of the sensors simply broke off at the post office. Luckily, the third one only lasted and worked for a few minutes. When I connected the sensor, everything worked. Then I unplugged it and plugged it back in and CANCELED THE THIRD SOLDER! I think I have to return this item but I would really appreciate it if the seller would just send me…

    Pros
    • The raindrop board and control board are separate, easy to populate
    Cons
    • Could have chosen a newer model