TheGrove - Moisture Sensor can be used to detect the moisture of soil, to judge if there is dampness around the sensor. It can be used to decide if the plants in a garden need watering. It can be used in gardens to automate watering plants. It can be used very easily by just inserting the sensor into the soil and reading the output using ADC.
NOTE: This sensor is not hardened against contamination or exposure of the control circuitry to water and may be prone to electrolytic corrosion across the probes , please use it for PROTOTYPING ONLY.
Grove compatible interface
Easy to use
Operating voltage: 3.3~5V
Operating current: 35mA
Sensor Output Value in dry soil: 0~ 300
Sensor Output Value in humid soil: 300~700
Sensor Output Value in water: 700 ~ 950
PCB size: 2.0cm X 6.0cm
Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our forum.
When I use this sensor in water, is it possible to detect how much of the sensor electrodes is under water, i.e. use this sensor as a water level indicator?
You'll have to select the 5cmx10cm option. Always select the option where both dimensions are greater than your actual dimensions.
The ordner number can be anywhere on your silkscreen, I always put it where I have room for it and create a little
What's the max output voltage
Hi.The maximum voltage you can provide is 5v.
the connections say SIG, blank, Vcc and GND. I know Vcc and GND. but what are the SIG and blank connections..which one is the analog output.
Hi.SIG means signal.So it is the analog input pin.
What is the working principle? resistance, capacitance or something else
Hi,it is a resistive transducer.
How can I get the transfer function of this sensor?
Dear Ahmed,if you want to know how to use the transfer function,you can refer to the library file of Arduino.Such as:int analogRead(uint8_t pin)
uint8_t low, high;
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
Can I use a PIC or microcontroller with A / D converter instead of the Grove - Base Shield to measure humidity?
Of course you can!But maybe it looks like more complicated.
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