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    <div class="moz-cite-prefix">or use an S16 to return a (+ve) U8
      value on success, with one of many -ve values indicating error(s).<br>
      <br>
      -mark<br>
      <br>
      On 5/02/2016 5:21 p.m., Jasper Mackenzie wrote:<br>
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                          <div>Good day all,<br>
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                           What is the opinion of this esteemed group on
                          the best/proper/whatever way to get the
                          measured value from some external input from a
                          micro in C.<br>
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                        <div>By measured value I mean something like
                          ADC, OW temp sensor, I2C sensor state etc.<br>
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                         I am considering the following three scenarios
                        in increasing order of goodness:<br>
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                      1) function returns the measured value indicating
                      error by out of range result (i.e 0xFF for  8 bit
                      int)<br>
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                    <div>i.e:<br>
                      ...<br>
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                    <div>unit8_t readSomePin(void); // 0xFF indicates
                      error<br>
                      <br>
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                    2) function returns the measured value indicating
                    status of measurement in another extern. variable<br>
                    ...<br>
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                  extern uint8_t readSomePinStatus;<br>
                  unit8_t readSomePin(void);  // Status in
                  readSomePinStatus<br>
                  <br>
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                3) function returns status, the value is stored in an
                argument variable:<br>
                ...<br>
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              unint8_t readSomePin(uint8_t *returnedValue);<br>
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            So, what is best? Is there a better way? This could no doubt
            also be done with Structs, but seems like overkill to me.<br>
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          Cheers<br>
          <br>
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        jasper<br>
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