Review on π‘οΈ 3-Pack of HiLetgo LM393 Rain Drops Sensor with Weather Moisture Monitoring, Humidity Sensitivity Module, Nickeled Plate for Arduino, 3.3-5V Compatible by Glenn Rodgers
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!
- 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
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