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 Alex Jain
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.
- Comparator output, clean signal, good waveform, good controllability, more than 15mA
- Not the best
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