Arduino home energy monitor shield. Although products are becoming more and more available for monitoring your home power usage, I'm one of those idiots who can't leave well enough alone and who would rather shell out $100 and hours of my time in order to save $20 and learn something in the process.
Building on the fine work of Trystan Lea and others at OpenEnergyMonitor.org as well as various and sundry web sources and acquaintances the result is a self-contained Arduino shield for monitoring the energy usage of your home using clamp on current transformers, an ethernet shield, and an Arduino. The resulting Energy Monitoring Shield has a built in switching power supply and with mains voltage (120VAC in the US) to the board can do power factor correction as well. With mains voltage to the board it is also more dangerous than your typical home electronics project and as such has been rejected for distribution by commercial maker outlets like adafruit and sparkfun. A thermocouple datalogger based on the Arduino platform. September 7, 2010 AT 10:11 am A thermocouple datalogger based on the Arduino platform & (previously, rolling your own thermocouples)… It never hurts to collect more data, and I often find myself wanting to record temperatures from a few extra animals.
Most (all?) Top 40 Arduino Projects of the Web. Mbeckler.org. Abstract: I picked up a cheap RGB LED from RadioShack (276-028) on my way home from school/work yesterday.
I recently built an Arduino so I thought that using this RGB LED with PWM output would be a fun way to get introduced to the Arduino way. Using three external potentiometers, I was able to mix different proportions of red, green, and blue in the same LED, producing nearly any color imaginable. General Description: The Arduino is a pretty slick platform for microcontroller development based on the Atmel line of microcontrollers. Projects, Tutorials.