StreamOut

An output unit that transmits values through a stream – for example, the Arduino serial line. Values are sent in clear text and separated by newlines and/or carriage returns.

Example

Outputs the number of seconds to serial.

#include <Plaquette.h>

StreamOut serialOut(Serial);

void begin() {}

void step() {
  // Output the number of seconds
  seconds() >> serialOut;
}

To run this example:

  1. Upload the code.

  2. In the Arduino software open the serial monitor: Tools > Serial Monitor.

  3. Make sure the default baudrate of 9600 bps is selected.

  4. You should see the seconds increase.

  5. Close the monitor and open serial plotter: Tools > Serial Plotter.

  6. You should see a graphical representation of the seconds.

  7. Replace the line in step() by: sin(seconds()) >> serialOut and upload. You should now see a sine wave signal in the serial plotter.

Reference

class StreamOut : public AnalogSource

Stream/serial output. Number of digits of precision is configurable.

Public Functions

StreamOut(Stream &stream = Serial)

Constructor.

Parameters:

stream – a reference to a Stream object

virtual float put(float value)

Pushes value into the unit.

Parameters:

value – the value sent to the unit

Returns:

the new value of the unit

virtual void precision(uint8_t digits)

Sets precision of the output.

Parameters:

digits – the number of digits to show after decimal point

inline virtual float get()

Returns value in [0, 1].

See Also