Learn how to create a simple heart rate monitor using an Arduino Pro Mini, PulseSensor, and OLED display. This ...

A rolling average of five inputs are used to help smooth the display data, which is shown on the 2.8″ LCD screen seen above. Posted in Arduino Hacks Tagged chest strap , heartrate , monitor , polar ...

Now you can build your own room temperature monitor using an Arduino board. The circuit is a combination of an Arduino UNO board, LM35 temperature sensor, and a 16×2 Hitachi compatible LCD. It will ...

Lucía Garbo has created an Arduino powered noise pollution monitor, powered by an Arduino Mega micro-controller and housed in a 3D printed case. Other components include a SparkFun Sound Detector ...

The LCD is driven by 74HC595 shift register in order to conserve pins on the Arduino. The system is also designed with a pretty slick setup interface. When it is booted, the user can enter a ...

Using a small LCD screen and the power of the Arduino Nano development Board the small palm size monitor has been enclosed in a waterproof 3D printed case and is equipped with waterproof buttons ...

As a preview of his latest book, Arduino Project Handbook: 25 Practical Projects to Get You Started, Mark Geddes takes us through the project to create a simple Arduino plant monitor. In this project ...

If you have allergies than you've likely considered picking up an air quality sensor for you house at some point. However, a good air quality monitor will run you upwards of $290.

If you want to DIY solution to your energy consumption, here's how modders created a home energy monitor from an Arduino, some wiring, and a little custom code.

Ever wish your home or office had airplane-style occupancy lights so you know when the toilet is in use? Some crafty hackers in Tokyo made this dream ...