Hello, I got this sensor : moisture sensor And it has 3 pins: VCC,Sig and GND. I connected all the pins VCC to 5v, Sig to A0 and the GND to GND. I have this sketch to check the sensor: void setup() { // put your setup code here, to run once: Serial.begin(9600); } void loop() { // put your …

Try this code. Use map() function. make variable declarations outside of loop int soilSensorValue = 0; int thresholdUp = 400; int thresholdDown = 250; void setup() { // put your setup code here, to run once: Serial.begin(9600); delay(100);// make small delay } void loop() { // put your main c…

ok that was the wiring.... but now I get random numbers all over the place.... from 1023 to 0... and it looks like it's going up stay at 1023 and then go down to 0 and stay at zero and all over again.... are you aware of this? Thank you for helping me! :slight_smile:

After checking only I have posted the code. Mine is working Read the map() function in arduino site. map(value, fromLow, fromHigh, toLow, toHigh); this function only makes your exact adc 10 bit value to what you want from high to low.Means convert the adc 10 bit values from low value and high val…

Ok I got it to work finally.... I used wires I knew that would work and it work. I already know the map function but wanted to get good results before I used that. now that I get them I'll use the map function. Thank you so much for helping me!

soil moisture sensor with 3 pins

Other Hardware Sensors

SureshKumar2610 February 17, 2017, 7:32am 5

Ok. Where is the module.? that simple board ?.

That can only to interface between your arduino and sensor.

Here find this I have attached below of that sensor and that module

soil moisture.jpg

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soil moisture sensor with 3 pins

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