12 Oct '17, 7pm

Great article in October issue of Circuit Cellar

Great article in October issue of Circuit Cellar

Setting out to monitor and log electricity usage in his house, Bill built an amp-hour logger using a microcontroller and a clamp-on ammeter. He gets into the software development details exploring solutions like mbed and Microsoft Visual Studio. By William Wachsmann Like many people I found that electricity costs have been increasing rapidly over the past few years. Where I live, we have smart meters that allow the power company to charge different rates for high usage, moderate usage and low usage times of the day. The bills show how much energy is used during the different periods but only for the dwelling as a whole. For this project, I used an NXP-Freescale FRDM-KL25Z microcontroller board. I wanted to know which parts of my house use how much electricity and at what times of the day. With this information, I would be able to see what parts of the house are using how m...

Full article: http://circuitcellar.com/cc-blog/logger-device-tracks-amp...

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