The soil moisture sensor module , built around the LM393 comparator ... to one analog input (A0) of the Arduino. Here is the test code that indicates the soil wet/dry conditions using just two LEDs ...

I borrowed most of the Arduino's programming code from Iseman's project and ... (according to a comparison with a commercial soil-moisture sensor), and 661 in a drier pot. This gave me a good ...

The Arduino and Raspberry Pi ... you can write a function that accepts the moisture value from the sensor and displays it as ...

You’ll use an HL-69 moisture sensor, readily available online for a ... Check that your setup matches that below, and then upload the code in “The Sketch” (see below). 6. Connect the Arduino to your ...

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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 ...

Arduino collects sensor data and sends it via serial to the Pi. Pi parses and stores data using Python + SQLite. Optional: Build a web dashboard using Flask or Node-RED to display data trends. Arduino ...

So, Instructables user dr.mcc built a moisture sensor that alerts you when you need to water a plant by using an emoticon. Using an Arduino, a moisture sensor, an LED matrix, and a few other parts ...