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Arduino Soil Moisture Sensor
Posted on Friday, June 14, 2019   •   Category: Miscellaneous

Arduino Soil Moisture Sensor

This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level. It uses Arduino Duemilanove microcontroller board. Two wires placed in the soil pot form a variable resistor, whose resistance varies depending on soil moisture. This variable resistor is connected in a voltage divider configuration, and Arduino collects a voltage proportional to resistance between the 2 wires.

     Parrot Sounding AC door Bell
     Sine Wave Synthesizer
     Alarm Sounds When Refrigerator Door Remains Open Too Long
     Sound Operated Switch
     Doorbell with 555 IC
     Strobe Light
     LCD Display
     Adjustable Delay Circuit
     Arduino Soil Moisture Sensor
     Using HSR312 / HSR412 Solid State Relays
Arduino Soil Moisture Sensor

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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