Soil Moisture Sensor Arduino
We are beginners and therefore like a lot simple projects to learn our way. Sine the last comment, we integratded in the project a peristaltic pump wich deliver 50 ml water to an indoor plant when the analog reading is less than 450.
Then we added a RTC DS 1307 to control daily at the same time if the plant need water. Highly compressed fifa 17. The total cost is less than 20 usd. We are now learning the home automation tutorial on the NodeCmu Lua ESP8266-12E. To replace the clock and the arduino (uno or nano) card while making our project part of IoT for a cost of around 15 usd per plant.Thanks a lot for the very helpfull tutorials (Home Automation)Jean Pierre. Hi Terry.That module has a potentiometer that sets a threshold. The module will output a HIGH signal (1) if the readings are above the threshold set with the potentiometer. It will output 0 if the readings are below the threshold.
Soil Moisture Sensor Circuit
However, you can’t “see” what is the threshold. You have to rotate the potentiometer and experiment with several types of soil humidity values to check the best threshold.Alternatively, you can use the analog readings and set your own threshold value on the code.I hope this helps.Regards,Sara.