We have a collection of almost 500+ Arduino projects with Code, Circuit Diagram, and detailed explanations completely free for everyone to build and learn on their own. The IR sensor has a 3-pin ...

The nano sensor interface presented below is a microcontroller-based universal sensor interface with a power-saver mechanism. The idea, centered around an Arduino Nano ... we only need 3.78 V) when ...

Is a human micro-motion sensor ... pin which can be used to signal presence, based off the settings configured. Once the modules are configured it is not necessary to use their UART, but it provides ...

Proximity sensing is a common application for intruder alarms, light switches, and other home and industrial automation applications. There are multiple methods of proximity detection used in the ...

We think of the Arduino as a rapid prototyping ... The serial pins from the chip are mapped to the UART on the AVR chip, and in turn they appear on the pin headers for easy connections.

of the Arduino. Here is the test code that indicates the soil wet/dry conditions using just two LEDs (green & red). int GLED= 13; // Wet Indicator at Digital PIN D13 int RLED= 12; // Dry Indicator at ...

The LM35 temperature sensor is used to sense the environment’s temperature, producing a signal that indicates a 1-degree temperature change for every 10mV change at its output pin ... 3: Snippet of ...