<div dir="ltr"><div class="gmail_default" style="font-size:small">Thanks everyone for the help.  This is now working as expected.</div><div class="gmail_default" style="font-size:small">maxDistance was being overwritten to 0 in what I thought was a disabled function.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">if ((cm[x] == 0) or (cm[x] > maxDistance)) {<br>      cm[x] = 999;<br>    }</div><div class="gmail_default" style="font-size:small">Output:<br></div><div class="gmail_default" style="font-size:small">--- Miniterm on /dev/ttyUSB-sensors  115200,8,N,1 ---<br>--- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---<br>maxDistance = 200<br>cm[0] = 0<br>cm[1] = 92<br>cm[2] = 91<br>cm[3] = 90<br>cm[4] = 249<br>| us_Left = 999cm | us_Mid = 92cm | us_Right = 91cm | ir_Left = 90cm | ir_Right = 999cm | Time = 46mS</div><div class="gmail_default" style="font-size:small">...Pat C.<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Dec 17, 2021 at 8:16 PM Pat Caron <<a href="mailto:patcaron@mail.com">patcaron@mail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-size:small">I did another quick test removing the cm[x] == 0 condition & leaving the > 200 instead of maxDistance.<br></div><div class="gmail_default" style="font-size:small">if ((cm[x] > 200)) {<br>      cm[x] = 999;<br>    }<br></div><div class="gmail_default" style="font-size:small">This also worked as expected.</div><div class="gmail_default" style="font-size:small">Output:</div><div class="gmail_default" style="font-size:small">--- Miniterm on /dev/ttyUSB-sensors  115200,8,N,1 ---<br>--- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---<br>cm[0] = 0<br>cm[1] = 92<br>cm[2] = 91<br>cm[3] = 90<br>cm[4] = 248<br>| us_Left = 0cm | us_Mid = 92cm | us_Right = 91cm | ir_Left = 90cm | ir_Right = 999cm | Time = 46mS</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I then put maxDistance back in without the cm[x] == 0 and it failed!</div><div class="gmail_default" style="font-size:small">if ((cm[x] > maxDistance)) {<br>      cm[x] = 999;<br>    }</div><div class="gmail_default" style="font-size:small">--- Miniterm on /dev/ttyUSB-sensors  115200,8,N,1 ---<br>--- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---<br>cm[0] = 0<br>cm[1] = 93<br>cm[2] = 91<br>cm[3] = 90<br>cm[4] = 250<br>| us_Left = 0cm | us_Mid = 999cm | us_Right = 999cm | ir_Left = 999cm | ir_Right = 999cm | Time = 46mS</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">...Pat C.<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Dec 17, 2021 at 7:34 PM Pat Caron <<a href="mailto:patcaron@mail.com" target="_blank">patcaron@mail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-size:small">So I did a quick test removing the second condition</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">if ((cm[x] == 0)) { // or (cm[x] > maxDistance)) {<br>      cm[x] = 999;<br>    }</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">This is working!  Now I need to find out why the > maxDistance condition is causing the failure.<br></div><div class="gmail_default" style="font-size:small">Output:</div><div class="gmail_default" style="font-size:small">--- Miniterm on /dev/ttyUSB-sensors  115200,8,N,1 ---<br>--- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---<br>cm[0] = 0<br>cm[1] = 93<br>cm[2] = 91<br>cm[3] = 90<br>cm[4] = 252<br>| us_Left = 999cm | us_Mid = 93cm | us_Right = 91cm | ir_Left = 90cm | ir_Right = 252cm | Time = 46mS<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Dec 17, 2021 at 5:35 PM Rud Merriam via DPRGlist <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
  
    
  
  <div>
    <p>Okay, so we know it is happening in the handling of the
      conditional. Run it twice. Once with the test for maxDistance
      removed and once with the test for equality removed. Also, add a
      print out of <i>maxDistance</i>. Need to make sure it is not
      being changed although the test with '200' there should show it
      isn't. <br>
    </p>
    <p>If you get the same results I'm going to start drinking. <br>
    </p>
    <p>Actually, I'll start wondering about the build process. I'm not
      familiar with PlatformIO. The Arduino IDE takes all the files,
      rearranges them, and then compiles the resulting file. That's
      unlike most C++ build systems. The "rearranging" can lead to some
      strange issues. <br>
    </p>
    <div><font face="Comic Sans MS" color="#000080"> <br>
        -73 - <br>
        <b>Rud Merriam K5RUD</b> <br>
        <a href="http://mysticlakesoftware.com/" target="_blank"> <i>Mystic Lake
            Software</i> </a> <br>
        <br>
      </font>
    </div>
    <div>On 12/17/21 3:18 PM, Pat Caron via
      DPRGlist wrote:<br>
    </div>
    <blockquote type="cite">
      
      <div dir="ltr">
        <div class="gmail_default" style="font-size:small">Here is the
          output from Rud's changes:</div>
        <div class="gmail_default" style="font-size:small"><br>
        </div>
        <div class="gmail_default" style="font-size:small">--- Miniterm
          on /dev/ttyUSB-sensors  115200,8,N,1 ---<br>
          --- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by
          Ctrl+H ---<br>
          cm[0] = 0 0 999 999<br>
          cm[1] = 95 95 999 999<br>
          cm[2] = 91 91 999 999<br>
          cm[3] = 84 84 999 999<br>
          cm[4] = 251 251 999 999<br>
          cm[0] = 0 0 999 999</div>
        <div class="gmail_default" style="font-size:small">...Pat C.<br>
        </div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Fri, Dec 17, 2021 at 4:04
          PM John Swindle via DPRGlist <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>>
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
          <div style="color:black;font:10pt Arial,Helvetica,sans-serif"><br>
            <div>
              <div style="font-family:arial,helvetica;font-size:10pt;color:black"><font size="2">
                  From: Rud Merriam via DPRGlist <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>><br>
                  To: <a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br>
                  Cc: Rud Merriam <<a href="mailto:rudmerriam@gmail.com" target="_blank">rudmerriam@gmail.com</a>><br>
                  Sent: Fri, Dec 17, 2021 2:35 pm<br>
                  Subject: Re: [Dprglist] Arduino Code Troubles<br>
                  <br>
                  <div id="gmail-m_6224175929652028693gmail-m_-5425482318595831762gmail-m_2894956073640297808gmail-m_6142257130072753671yiv3997825307">
                    <div>
                      <div>Obviously somethine strange happening.
                        Grasping at a straw try replacing the 'or' in
                        the conditional with '||'. It shouldn't make a
                        difference but.... <br clear="none">
                      </div>
                      <div>Started to make othere suggestions to
                        localize the problem but to much verbiage. Here
                        is what I would try:<br clear="none">
                      </div>
                      <pre>  for (uint8_t x = 0; x < (SONAR_NUM + IR_NUM); x++) {
    Serial.print("cm[");
    Serial.print(x);
    Serial.print("] = ");
    Serial.print(cm[x]);
    Serial.print(" ");

    if ((cm[x] == 0) || (cm[x] > maxDistance)) {
      Serial.print(cm[x]);    //
      Serial.print(" ");

      cm[x] = 999;

      Serial.print(cm[x]);   //
      Serial.print(" ");

    }

    Serial.println(cm[x]);
  }</pre>
                      <div><br clear="none">
                      </div>
                      <div><font face="Comic Sans MS" color="#000080"> <br clear="none">
                          -73 - <br clear="none">
                          <b>Rud Merriam K5RUD</b> <br clear="none">
                          <a rel="nofollow noopener noreferrer" shape="rect" href="http://mysticlakesoftware.com/" target="_blank"> <i>Mystic
                              Lake Software</i> </a> <br clear="none">
                          <br clear="none">
                        </font> </div>
                      <div id="gmail-m_6224175929652028693gmail-m_-5425482318595831762gmail-m_2894956073640297808gmail-m_6142257130072753671yiv3997825307yqtfd15399">
                        <div>On 12/17/21 10:13 AM, Pat Caron via
                          DPRGlist wrote:<br clear="none">
                        </div>
                        <blockquote type="cite"> </blockquote>
                      </div>
                    </div>
                    <div id="gmail-m_6224175929652028693gmail-m_-5425482318595831762gmail-m_2894956073640297808gmail-m_6142257130072753671yiv3997825307yqtfd69348">
                      <div>
                        <div dir="ltr">
                          <div style="font-size:small"><br clear="none">
                            <div style="font-size:small">What I meant to
                              say last night is the array size is
                              cm[8].  The values for SONAR_NUM == 3 and
                              IR_NUM == 2<br clear="none">
                              This should not be overrunning the array
                              as it only loops through 5 times.<br clear="none">
                              I have tried setting maxDistance as
                              uint32_t without any difference.</div>
                            <div style="font-size:small">I have
                              commented out the sendData() function and
                              added some Serial.print statements prior
                              to reassigning the values. (shown in
                              output)</div>
                            <div style="font-size:small"><br clear="none">
                            </div>
                            <div style="font-size:small">#define
                              SONAR_NUM 3<br clear="none">
                              #define IR_NUM 2<br clear="none">
                              uint32_t cm[8] = {0,0,0,0,0,0,0,0}; //
                              Create array<br clear="none">
                              uint16_t maxDistance = 200; // Also used
                              with NewPing.h libraray<br clear="none">
                              char *position[] = {"us_Left", "us_Mid",
                              "us_Right", "ir_Left", "ir_Right",
                              "cm[5]", "cm[6]", "cm[7]"};<br clear="none">
                              .<br clear="none">
                              . // Other code here<br clear="none">
                              .<br clear="none">
                              <br clear="none">
                              void oneSensorCycle() { // Sensor ping
                              cycle complete, do something with the
                              results.<br clear="none">
                                for (uint8_t x = 0; x < (SONAR_NUM +
                              IR_NUM); x++) {<br clear="none">
                                  Serial.print("cm[");<br clear="none">
                                  Serial.print(x);<br clear="none">
                                  Serial.print("] = ");<br clear="none">
                                  Serial.println(cm[x]);<br clear="none">
                                  if ((cm[x] == 0) or (cm[x] >
                              maxDistance)) {<br clear="none">
                                    cm[x] = 999;<br clear="none">
                                  }<br clear="none">
                                }<br clear="none">
                                if (troubleshoot) {<br clear="none">
                                  for (uint8_t i = 0; i < (SONAR_NUM
                              + IR_NUM); i++) {<br clear="none">
                                    Serial.print("| ");<br clear="none">
                                    Serial.print(position[i]);<br clear="none">
                                    Serial.print(" = ");<br clear="none">
                                    Serial.print(cm[i]);<br clear="none">
                                    Serial.print("cm ");<br clear="none">
                                  }<br clear="none">
                                  Serial.print("| ");<br clear="none">
                                  Serial.print("Time = ");<br clear="none">
                                  Serial.print(elapsedMillis);<br clear="none">
                                  Serial.print("mS");<br clear="none">
                                  Serial.println();<br clear="none">
                                }<br clear="none">
                                //else {<br clear="none">
                                //  sendData();<br clear="none">
                                //}<br clear="none">
                              }<br clear="none">
                              <br clear="none">
                              <br clear="none">
                              Loop() {<br clear="none">
                            </div>
                            <div style="font-size:small">  .// other
                              code<br clear="none">
                            </div>
                            <div style="font-size:small"> 
                              oneSensorCycle()<br clear="none">
                            </div>
                            <div style="font-size:small">  . // more
                              code<br clear="none">
                            </div>
                            <div style="font-size:small">}<br clear="none">
                              <br clear="none">
                              Serial output:<br clear="none">
                              <br clear="none">
                              -- Miniterm on /dev/ttyUSB-sensors
                               115200,8,N,1 ---<br clear="none">
                              --- Quit: Ctrl+C | Menu: Ctrl+T | Help:
                              Ctrl+T followed by Ctrl+H ---<br clear="none">
                              cm[0] = 0<br clear="none">
                              cm[1] = 95<br clear="none">
                              cm[2] = 91<br clear="none">
                              cm[3] = 85<br clear="none">
                              cm[4] = 246<br clear="none">
                              | us_Left = 999cm | us_Mid = 999cm |
                              us_Right = 999cm | ir_Left = 999cm |
                              ir_Right = 999cm | Time = 44mS<br clear="none">
                              <br clear="none">
                              ...Pat C<br clear="none">
                              <br clear="none">
                            </div>
                          </div>
                        </div>
                        <br clear="none">
                        <div>
                          <div dir="ltr">On Fri, Dec 17, 2021 at 10:07
                            AM Chris Netter <<a rel="nofollow
                              noopener noreferrer" shape="rect" href="mailto:netterchris@gmail.com" target="_blank">netterchris@gmail.com</a>>
                            wrote:<br clear="none">
                          </div>
                          <blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                            <div lang="EN-US">
                              <div>
                                <div>The for loop stops at x < 8, so
                                  it won’t overrun.</div>
                                <div> </div>
                                <div>What if you remove the sendData()
                                  call?  Does that help?</div>
                                <div> </div>
                                <div>Also,  make sure you have declared
                                  any global variables which are
                                  modified by interrupts or other tasks
                                  as “volatile”, otherwise the compile
                                  may decide to optimize away parts of
                                  your code.</div>
                                <div> </div>
                                <div>Chris</div>
                                <div> </div>
                                <div style="border-color:rgb(225,225,225) currentcolor currentcolor;border-style:solid none none;border-width:1pt medium medium;padding:3pt 0in 0in">
                                  <div style="border:medium none;padding:0in"><b>From: </b><a rel="nofollow noopener noreferrer" shape="rect" href="mailto:paradug@gmail.com" target="_blank">Doug
                                      Paradis</a><br clear="none">
                                    <b>Sent: </b>Thursday, December 16,
                                    2021 11:46 PM<br clear="none">
                                    <b>To: </b><a rel="nofollow
                                      noopener noreferrer" shape="rect" href="mailto:netterchris@gmail.com" target="_blank">Chris
                                      Netter</a><br clear="none">
                                    <b>Cc: </b><a rel="nofollow
                                      noopener noreferrer" shape="rect" href="mailto:patcaron@mail.com" target="_blank">Pat Caron</a>;
                                    <a rel="nofollow noopener
                                      noreferrer" shape="rect" href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br clear="none">
                                    <b>Subject: </b>Re: [Dprglist]
                                    Arduino Code Troubles</div>
                                </div>
                                <div> </div>
                                <div>
                                  <div>Pat,</div>
                                  <div>
                                    <div>    for (uint8_t x = 0; x <
                                      (SONAR_NUM + IR_NUM); x++) {</div>
                                  </div>
                                  <div>
                                    <div> </div>
                                  </div>
                                  <div>
                                    <div>    If  SONAR_NUM _ IR_NUM = 8
                                      then you are overrunning the array
                                      which goes 0 to 7.</div>
                                  </div>
                                  <div>
                                    <div> </div>
                                  </div>
                                  <div>
                                    <div>Regards,</div>
                                  </div>
                                  <div>
                                    <div>Doug P.</div>
                                  </div>
                                </div>
                                <div> </div>
                                <div>
                                  <div>
                                    <div>On Thu, Dec 16, 2021 at 8:53 PM
                                      Chris Netter via DPRGlist <<a rel="nofollow noopener
                                        noreferrer" shape="rect" href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>>
                                      wrote:</div>
                                  </div>
                                  <blockquote style="border-color:currentcolor currentcolor currentcolor rgb(204,204,204);border-style:none none none solid;border-width:medium medium medium 1pt;padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
                                    <div>
                                      <div>
                                        <div>So Markus and Karim already
                                          pointed out that the original
                                          code snipped works as
                                          designed.</div>
                                        <div> </div>
                                        <div>It’s also been pointed out
                                          already that you are mixing
                                          data types. I don’t think
                                          that’s the issue, but worth
                                          trying to make both the array
                                          and maxDistance uint16_t</div>
                                        <div> </div>
                                        <div>As for this new code
                                          snippet:</div>
                                        <div> </div>
                                        <div>I don’t see any obvious
                                          issue with the for loop.  Are
                                          you positive that <span style="font-size:12pt">SONAR_NUM
                                            + IR_NUM == 8 ?   if not,
                                            you are overshooting the
                                            array and that can cause all
                                            kinds of non-obvious issues.</span></div>
                                        <div><span style="font-size:12pt"> </span></div>
                                        <div><span style="font-size:12pt">Also,
                                            what does sendData() do? 
                                            Could it have some
                                            side-effects?   Maybe its
                                            causing a stack overflow,
                                            array bounds overflow, or
                                            similar, which in turn
                                            causes non-obvious issues?</span></div>
                                        <div> </div>
                                        <div> </div>
                                        <div> </div>
                                        <div style="border-color:rgb(225,225,225) currentcolor currentcolor;border-style:solid none none;border-width:1pt medium medium;padding:3pt 0in 0in">
                                          <div><b>From: </b><a rel="nofollow noopener
                                              noreferrer" shape="rect" href="mailto:dprglist@lists.dprg.org" target="_blank">Pat
                                              Caron via DPRGlist</a><br clear="none">
                                            <b>Sent: </b>Thursday,
                                            December 16, 2021 9:04 PM<br clear="none">
                                            <b>To: </b><a rel="nofollow
                                              noopener noreferrer" shape="rect" href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a><br clear="none">
                                            <b>Subject: </b>Re:
                                            [Dprglist] Arduino Code
                                            Troubles</div>
                                        </div>
                                        <div> </div>
                                        <div>
                                          <div>
                                            <div><span style="font-size:12pt">Hi
                                                guys, here is a better
                                                example to show what is
                                                happening taken from
                                                actual code:</span></div>
                                          </div>
                                          <div>
                                            <div><span style="font-size:12pt"> </span></div>
                                          </div>
                                          <div>
                                            <div><span style="font-size:12pt">....
                                                other code<br clear="none">
                                                  for (uint8_t x = 0; x
                                                < (SONAR_NUM +
                                                IR_NUM); x++) {  //
                                                SONAR_NUM + IR_NUM = 8<br clear="none">
                                                    if ((cm[x] == 0) ||
                                                (cm[x] >
                                                maxDistance)) {<br clear="none">
                                                      cm[x] = 999;<br clear="none">
                                                    }</span></div>
                                          </div>
                                          <div>
                                            <div><span style="font-size:12pt"> 
                                                sendData();</span></div>
                                          </div>
                                          <div>
                                            <div><span style="font-size:12pt"> 
                                                }<br clear="none">
                                                <br clear="none">
                                                Printed values cm[0] to
                                                cm[5] (us_Left to
                                                ir_Right) without the
                                                above if statement<br clear="none">
                                                | us_Left = 0cm | us_Mid
                                                = 95cm | us_Right = 51cm
                                                | ir_Left = 84cm |
                                                ir_Right = 252cm | Time
                                                = 45mS<br clear="none">
                                                <br clear="none">
                                                Printed values cm[0] to
                                                cm[5] with the above if
                                                statement<br clear="none">
                                                \| us_Left = 999cm |
                                                us_Mid = 999cm |
                                                us_Right = 999cm |
                                                ir_Left = 999cm |
                                                ir_Right = 999cm | Time
                                                = 44mS<br clear="none">
                                                <br clear="none">
                                                ...Pat C</span></div>
                                          </div>
                                        </div>
                                        <div> </div>
                                        <div>
                                          <div>
                                            <div>On Thu, Dec 16, 2021 at
                                              8:45 PM Karim Virani <<a rel="nofollow noopener
                                                noreferrer" shape="rect" href="mailto:pondersome64@gmail.com" target="_blank">pondersome64@gmail.com</a>>
                                              wrote:</div>
                                          </div>
                                          <blockquote style="border-color:currentcolor currentcolor currentcolor rgb(204,204,204);border-style:none none none solid;border-width:medium medium medium 1pt;padding:0in 0in 0in 6pt;margin:5pt 0in 5pt 4.8pt">
                                            <div>
                                              <div>It's doing what it's
                                                coded to do</div>
                                            </div>
                                            <div> </div>
                                            <div>
                                              <div>
                                                <div>On Thu, Dec 16,
                                                  2021 at 7:42 PM Pat
                                                  Caron via DPRGlist
                                                  <<a rel="nofollow
                                                    noopener noreferrer" shape="rect" href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>>
                                                  wrote:</div>
                                              </div>
                                              <blockquote style="border-color:currentcolor currentcolor currentcolor rgb(204,204,204);border-style:none none none solid;border-width:medium medium medium 1pt;padding:0in 0in 0in 6pt;margin:5pt 0in 5pt 4.8pt">
                                                <div>
                                                  <div>
                                                    <div><span style="font-size:12pt">Hi
                                                        Murray, I did
                                                        try that with
                                                        the same
                                                        results. 
                                                        NewPing.h
                                                        library is
                                                        looking for a
                                                        uint16_t
                                                        although it
                                                        didn't complain
                                                        when I tried
                                                        that.</span></div>
                                                  </div>
                                                  <div>
                                                    <div><span style="font-size:12pt"> </span></div>
                                                  </div>
                                                  <div>
                                                    <div><span style="font-size:12pt">...Pat
                                                        C</span></div>
                                                  </div>
                                                </div>
                                                <div> </div>
                                                <div>
                                                  <div>
                                                    <div>On Thu, Dec 16,
                                                      2021 at 8:35 PM
                                                      Murray Altheim via
                                                      DPRGlist <<a rel="nofollow
                                                        noopener
                                                        noreferrer" shape="rect" href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>> wrote:</div>
                                                  </div>
                                                  <blockquote style="border-color:currentcolor currentcolor currentcolor rgb(204,204,204);border-style:none none none solid;border-width:medium medium medium 1pt;padding:0in 0in 0in 6pt;margin:5pt 0in 5pt 4.8pt">
                                                    <div>Hi Pat,<br clear="none">
                                                      <br clear="none">
                                                      What if you define
                                                      maxDistance as
                                                      uint32_t?<br clear="none">
                                                      <br clear="none">
                                                      Cheers,<br clear="none">
                                                      <br clear="none">
                                                      Murray<br clear="none">
                                                      <br clear="none">
                                                      On 17/12/21 2:27
                                                      pm, Pat Caron via
                                                      DPRGlist wrote:<br clear="none">
                                                      > Hi guys, I'm
                                                      looking for help
                                                      with the following
                                                      Arduino code.<br clear="none">
                                                      > <br clear="none">
                                                      >      uint32_t
                                                      cm[8] =
                                                      {0,0,0,0,0,0,0,0};
                                                      // Create array<br clear="none">
                                                      >      uint16_t
                                                      maxDistance = 200;
                                                      // Also used with
                                                      NewPing.h library<br clear="none">
                                                      >      .<br clear="none">
                                                      >      . //
                                                      Other code here<br clear="none">
                                                      >      .<br clear="none">
                                                      >     
                                                      irSensorL.read();
                                                      // Read IR
                                                      sensor... This is
                                                      working!<br clear="none">
                                                      >      cm[3] =
irSensorL.ranging_data.range_mm/10; // This returns 268<br clear="none">
                                                      >      if
                                                      (cm[3] >
                                                      maxDistance) {<br clear="none">
                                                      >        cm[3]
                                                      = 999;            
                                                          /<br clear="none">
                                                      >      }<br clear="none">
                                                      >     
                                                      Serial.println(cm[3]); 
                                                      / cm[3] value is
                                                      always = 999<br clear="none">
                                                      >     
                                                      sendData();<br clear="none">
                                                      > <br clear="none">
                                                      > The cm[3]
                                                      value is always
                                                      999 when I run
                                                      this.<br clear="none">
                                                      > If I comment
                                                      out the if
                                                      cm[3]... statement
                                                      cm[3] value is
                                                      then 268.<br clear="none">
                                                      > <br clear="none">
                                                      > ...Pat C<br clear="none">
                                                      > <br clear="none">
                                                      >
                                                      _______________________________________________<br clear="none">
                                                      > DPRGlist
                                                      mailing list<br clear="none">
                                                      > <a rel="nofollow
                                                        noopener
                                                        noreferrer" shape="rect" href="mailto:DPRGlist@lists.dprg.org" target="_blank">DPRGlist@lists.dprg.org</a><br clear="none">
                                                      > <a rel="nofollow
                                                        noopener
                                                        noreferrer" shape="rect" href="http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org" target="_blank">http://lists.dprg.org/listinfo.cgi/dprglist-dprg.org</a><br clear="none">
                                                      > <br clear="none">
                                                      <br clear="none">
                                                      -- <br clear="none">
                                                      <br clear="none">
.........................................................................<br clear="none">
                                                      Murray Altheim
                                                      <murray18 at
                                                      altheim dot
                                                      com>           
                                                                 = = 
                                                      ===<br clear="none">
                                                      <a rel="nofollow
                                                        noopener
                                                        noreferrer" shape="rect" href="http://www.altheim.com/murray/" target="_blank">http://www.altheim.com/murray/</a>               
                                                                       
                                                         ===  ===<br clear="none">
                                                                       
                                                                       
                                                                       
                                                                    = = 
                                                      ===<br clear="none">
                                                           In the
                                                      evening<br clear="none">
                                                           The rice
                                                      leaves in the
                                                      garden<br clear="none">
                                                           Rustle in the
                                                      autumn wind<br clear="none">
                                                           That blows
                                                      through my reed
                                                      hut.<br clear="none">
                                                                  --
                                                      Minamoto no
                                                      Tsunenobu<br clear="none">
                                                      <br clear="none">
_______________________________________________<br clear="none">
                                                      DPRGlist mailing
                                                      list<br clear="none">
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