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Raspberry Pi kWh meter

Raspberry Pi kWh meter PUBLIC

This is the schematic for reading (analog) kilowatt-hour meters. This schematic has two CNY70 sensors to read the "black spot" on the rotating disk. Software will read the ADC converter info and can...

by Patrick6325 | updated October 22, 2013

adc   cny70   gpio   mcp3004   mcp3008   pi   raspberry   raspberry-pi   rpi   spi  

Current transformer interface for Arduino

Current transformer interface for Arduino PUBLIC

The circuit to interface a current transformer to an Arduino analog input pin. The burden resistor needs to be chosen based on the specifications of the CT and the expected amperage range for...

by nsayer | updated July 24, 2013

adc   ammeter   arduino   current-transformer  

electret amplifier

electret amplifier PUBLIC

electret amplifier

by jjkeizer | updated April 23, 2013

adc   amplifier   electret   microphone  

Dual 555 PWM generator

Dual 555 PWM generator PUBLIC

A simple 2x555 PWM generator intended for use as an ADC in which a computer times the pulse length. U1 produces a chain of trigger pulses for U2, which produces pulses whose length is dictated by the...

by thekeywordgeek | updated October 31, 2012

555   adc   pwm  

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