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project on measuring AC line voltage and display it on LCD

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anupteke

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project mcp3204

HI GUYS
I'm doing project on measuring AC line voltage and display it on LCD. I want to measure 4 different voltages and display it one by one on LCD. I'm using 89c51 UC and MCP3204 ADC becoz it is having 12-bit 4 channels. So i want to know how to select channels of this ADC. And which RMS to DC converter is better for AC voltage measurement??

Thanks

Anup
 

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