They used the webaudio API to send serial data to a remote Arduino. The hack uses a FET, a capacitor, and a few resistors. They didn’t quite build a real modem with the audio. Instead ...

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 plant monitor ... Use the ...

After some research, it was determined that it would be relatively simple to have an Arduino convert incoming serial data into a parallel ... or Clear to Send pin, on the serial side of things.

The Arduino candy bowl monitor has been created by the team over ... and a CC3000 WiFi chip exposes the sensor data to your wireless network. You can telnet to a simple server running on the ...

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.

However, a good air quality monitor will run you upwards ... He uses a cheap, $12 sensor with an Arduino and a Radiation shield and monitors the data on his computer. Surprisingly, he found ...