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Member #22640

Member Since: August 5, 2007

Country: United States

  • If you don’t need the audio decoding, why not use a dedicated SD card adapter. I’ve had success with this one from adafruit: http://www.adafruit.com/products/254

  • http://www.crmagnetics.com/Products/Assets/ProductPDFs/CR3100.pdf

    I’ve used this device (a pair of them actually) to monitor the entire power use of my house. Linear up to 100A, 0.58 gate size, weatherproof.

    Here’s a simple circuit to do precision rectification, amplification and averaging.