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TDS Meter Microcontroller

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stebinps1

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I am tracing a circuit for TDS ( Total dissolved substance) meter where I found this Microcontroller. I could not get details of this IC yet.
 

stebinps1 said:
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I am tracing a circuit for TDS ( Total dissolved substance) meter where I found this Microcontroller. I could not get details of this IC yet.
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I found that this IC drives 12 pin LCD ( 3 digits), has an i2c interface , a PWM pin with 10 Hz / 1 % duty cycle and 2 ADC inputs.
 

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