Simultaneous GPIO monitoring

Comments

• Shin

  March 2019

  This is the code I make nesting.

  @Override
  protected void setup() {
          gpio.pin(gpioPin).analogAbsRef().addRouteAsync(source -> source.stream((data, env) -> {
                  final Float voltage = data.value(Float.class);
  
                  LineData chartData = chart.getData();
                  if (startTime == -1) {
                      chartData.addXValue("0");
                      cl = Calendar.getInstance();
                      startTime = System.currentTimeMillis();
                  } else {
                      if (chartXValues.size() <= sampleCount) {
                          chartData.addXValue(String.format(Locale.US, "%.2f", sampleCount * samplingPeriod));
                      }
                  }
  
                  if (chart.getValueCount() < sampleCount) {
                      chartData.addEntry(new Entry(voltage, sampleCount), 0);
                  }
  
          }));
  
      filenameExtraString = String.format(Locale.US, "%s_pin_%d", csvHeaderDataName, gpioPin);
      timer.scheduleAsync(GPIO_SAMPLE_PERIOD, false, () -> {
                  gpio.pin(gpioPin).analogAbsRef().read();
  
      }).onSuccessTask(task -> {
                  scheduledTask = task.getResult();
  
                  return gpio.pin(gpioPin2).analogAbsRef().addRouteAsync(source -> source.stream((data, env) -> {
                      final Float voltage2 = data.value(Float.class);
  
                      LineData chartData = chart.getData();
  
                      if (chart.getValueCount() < sampleCount) {
                          chartData.addEntry(new Entry(voltage2, sampleCount), 1);
                      }
                      sampleCount++; 
  
                  }));
              });
  
          timer.scheduleAsync(GPIO_SAMPLE_PERIOD, false, () -> {
                      gpio.pin(gpioPin2).analogAbsRef().read();
  
          }).onSuccess(task -> {
              scheduledTask2 = task.getResult();
  
              scheduledTask2.start();
              scheduledTask.start();
  
              return null;
  
          });
  }
  
• Eric

  March 2019

  What do you mean by "is has not worked"? Provide more details.
• Shin

  March 2019

  Hi Eric,
  Thank you for your attention.

  @Eric said:
  What do you mean by "is has not worked"? Provide more details.

  Though I tap "start sampling" toggle button first, sampling and graphing do not start.
  The curious thing is that, after tap the toggle button (stop) and clear the graph, sampling and graphing start by tapping the toggle button.
  Both data are collected and plotted in the graph, but the sampling rate is doubled.
• Shin

  March 2019 edited March 2019

  FYI, I uploaded the video. https://streamable.com/t6hv6