The nano sensor interface presented below ... and goes back to sleep. My serial monitor had the lights to guide you on. As you might have observed, grounding (0 V) the trigger pin (D2) of the ...

You can read the state of a button using Arduino and a few lines of code ... using the digitalRead() function that reads the state of pin 8. Then it displays its state in the Serial Monitor window as ...

While we certainly do love the Arduino Nano for its low-cost and versatility ... the computer must release the port, including the serial monitor. Rather than using the bootloader, ICSP (in ...

You may be interested in a project published to the Hackster.io website earlier this year providing instructions on how to create a simple wearable heart rate monitor using an Arduino Nano R3.

Thankfully, with Arduino, there are several debugging ... where you print messages to the serial monitor, or signal through a GPIO pin that parts of your sketch run as expected.