Capacitieve bodemvochtigheidssensor ZSWQ-Sensor Hygrometer Module voor Arduino Vochtdetectie Tuin Watering DIY (8Pack)

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* Contrary to the description, there is no voltage regulator. In place of the voltage regulator there is a 0ohm resistor. The description does mention it won't work with 3.3v, but then it wrongly says it has a voltage regulator.* Contrary to the description, it doesn't use a TL555C, but a NE555, which uses about 10 times more power.* It has a very common PCB error that means the R4 resistor is not properly connected to ground, so you'll need to add your own resistor.In short, these are the worst you can get. Search youtube for "Capacitive Soil Moisture Sensors don't work correctly + Fix for v2.0 v1.2 Arduino ESP32 Raspberry Pi", and you'll see that these have ALL the common problems.They will work with a 5v project if you add the resistors, but you're better off finding some that don't have all the problems mentioned above.I bought from 3 different places, and all have at least one of those problems, which is baffling.

The onboard voltage regulator has been replaced with a zero ohm resistor, due to bad pcb layout. Because of this the lowest input voltage that is needed is 3.8V and not 3.0. So if your are using this for an arduino based on 5V then it will work great but if you using for example a ESP that is based on 3.3V circuit then you need step up the volage and then probobly a voltage divider to step it down the signal.

Il Valorie analogico restituito non è stabile, oscilla parecchio anche se l'umidità è costante.

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Die niedrigste Eingangsspannung, die benötigt wird ist, 3,8 V.Jeder ESP liefert nur 3.3V was bei meinen Projekt zu viel Frust führte da ich das anfänglich überlesen habe. Es gibt scheinbar verschiedene Sensoren und diese sind halt mit mindestens 3.8 V zu betreiben.Soweit funktioniert aber der Sensor tadellos und tut was er soll