Google's Loss of Pulse Detection is unique to the Pixel Watch 3 — here's how it went from idea to implementation ...

As the name suggests, the Pixel Watch 3 can detect the absence of a pulse while it's being worn on your wrist. It does this using the same optical sensors that are used to measure your heart rate.

Using an Arduino Nano, ultrasonic sensor, and buzzer, it can sense objects in their way ... for the waves to come back and finally send out that measured time as a (timing pulse signal) to Arduino via ...

Automating household or office systems can be achieved using an Arduino Nano, a passive infrared (PIR) motion sensor, and a relay. The primary aim is to create a control system that activates or ...

Flame sensors offer one of the most efficient methods of fire detection. Here we outline how to construct a simple and reliable Flame-Sensing Fire Alarm System using an Arduino Nano board. This fire ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller ... to see ...

When you think of Arduinos, what comes to mind is hardware-focused projects with all sorts of sensors ... Arduino Nano and Raspberry Pi Pico support different input voltages, so they also use ...

If using the board to familiarize yourself with Arduino and electronics ... like portable environmental sensors or mobile robots, you can't go wrong with the Nano. Its size makes it easy to ...

Notes: The PIR sensor deactivates the output with a delay of 3 seconds. Flushing starts by opening the solenoid valve by applying a short 9V DC voltage pulse to the solenoid. Flushing ends by applying ...

Arduino library ... which corresponds with the pulse width in microseconds for most servos. The protocol can also connect sensors to send back telemetry information to a RC transceiver. Depending on ...