Here is the diagram of my Arduino infrared close proximity sensor ... so it turns on briefly when the signal output pin goes High, providing a visual alert of when the sensor mechanism is detecting ...

Like many Arduino sensors, soil moisture detectors only have three pins: GND, VIN, and data. This means that they only take up a single data pin on your Arduino board. Counting your own pulse is a ...

If you are designing your own intelligent “Graden Computer” with an optional digital plant moisture sensor/water pump controller that lights an LED to alert the user when it is time to water a potted ...

The Arduino Nano Connector Carrier is a compact add-on board designed for the Arduino Nano boards to allow easy connection to ...