The microcontroller-based concept was chosen because I wanted to scale the sensor system later to suit other applications. Here is the diagram of my Arduino infrared close ... current (and hence the ...

Makers, hobbyists and Arduino enthusiasts searching ... The finish spirit level and measure features an ultrasonic sensor for measuring the distance to the nearest object, an accelerometer for ...

The soil moisture sensor module , built around the LM393 comparator, gives an active-low (L) level ... of the Arduino. Here is the test code that indicates the soil wet/dry conditions using just two ...