Analogvalue A0 inverted tfrom 12 to 8bit. 8bit controlled by com-port. 8bits to IIC-IC PCF8574a with 8leds lowaktiv. You see there a 8bit digital counter depending aof the analogvalue.

Dependencies:   mbed

My boards Nucleo F103RB and two IIC Systems:

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Neumaier Feb 2018

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