Taste The Code on MSN

Arduino heart rate monitor using Pro Mini PulseSensor and OLED for beginners

In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...
GitHub

Arduino library for BL0940 energy monitor, SPI interface only.

This library is not tested with hardware yet. (it is based upon datasheet + app note). If you have hardware and can test with SPI, please let me know (open an issue). The BL0940 is a configurable ...
Investopedia

What Is Return on Investment (ROI) and How to Calculate It

Ryan Eichler holds a B.S.B.A with a concentration in Finance from Boston University. He has held positions in, and has deep experience with, expense auditing, personal finance, real estate, as well as ...
GitHub

A user-land stream wrapper implementation for PHP to Arduino communication via USB serial.

This package defines an arduino:// protocol handler using a streamWrapper implementation. It also provides some byte processing utility functions (byte_pack() and byte_unpack()). Please note that this ...