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:


    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.