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42 lines
1.5 KiB
Markdown
42 lines
1.5 KiB
Markdown
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[](https://github.com/marketplace/actions/arduino_ci)
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[](https://github.com/RobTillaart/PrintCharArray/blob/master/LICENSE)
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[](https://github.com/RobTillaart/PrintCharArray/releases)
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# PrintCharArray
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Arduino library to print to a char array
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## Description
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PrintCharArray is a class implements the Print interface and an internal char array.
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It will buffer a number of print statements and allows it to be printed or processed
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(for real) later.
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The internal buffer can be set in the constructor and has a minimum of 20 bytes and
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a maximum of 250 bytes.
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Applications
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- buffer slowly generated data, and send it with minimum time between bytes
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use it e.g. for faster printing to SD card or Ethernet.
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- print to buffer to see how many chars the output is;
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use to prevent "display line overflow" (e.g. floats)
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## Interface
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- **PrintCharArray(uint8_t size = 100)** constructor
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- **size_t write(uint8_t c)** workhorse of Print interface.
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- **void clear()** wipes the internal buffer
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- **int available()** shows how much space is left in the internal buffer.
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Replaces free().
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- **int size()** current usage of the buffer
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- **int bufSize()** size of the whole buffer. recall that a char array must have a '\0' delimiter.
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- **char \* getBuffer()** to access the buffer.
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## Operation
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See examples
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