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118 lines
3.0 KiB
118 lines
3.0 KiB
#include "MicroBit.h"
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#ifndef MICROBIT_SERIAL_H
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#define MICROBIT_SERIAL_H
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#include "MicroBitComponent.h"
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#include "mbed.h"
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#define MICROBIT_SERIAL_DEFAULT_BAUD_RATE 115200
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#define MICROBIT_SERIAL_BUFFER_SIZE 20
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#define MICROBIT_SERIAL_DEFAULT_EOF '\n'
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/**
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* Class definition for MicroBitSerial.
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*
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* Represents an instance of Serial which accepts micro:bit specific data types.
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*/
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class MicroBitSerial : public Serial
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{
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ssize_t readChars(void* buffer, size_t length, char eof = MICROBIT_SERIAL_DEFAULT_EOF);
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public:
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/**
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* Constructor.
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* Create an instance of MicroBitSerial
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* @param sda the Pin to be used for SDA
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* @param scl the Pin to be used for SCL
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* Example:
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* @code
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* MicroBitSerial serial(USBTX, USBRX);
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* @endcode
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*/
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MicroBitSerial(PinName tx, PinName rx);
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/**
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* Sends a managed string over serial.
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*
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* @param s the ManagedString to send
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*
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* Example:
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* @code
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* uBit.serial.printString("abc123");
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* @endcode
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*/
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void sendString(ManagedString s);
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/**
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* Reads a ManagedString from serial
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*
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* @param len the buffer size for the string, default is defined by MICROBIT_SERIAL_BUFFER_SIZE
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*
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* Example:
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* @code
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* uBit.serial.readString();
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* @endcode
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*
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* @note this member function will wait until either the buffer is full, or a \n is received
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*/
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ManagedString readString(int len = MICROBIT_SERIAL_BUFFER_SIZE);
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/**
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* Sends a MicroBitImage over serial in csv format.
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*
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* @param i the instance of MicroBitImage you would like to send.
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*
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* Example:
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* @code
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* const uint8_t heart[] = { 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, }; // a cute heart
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* MicroBitImage i(10,5,heart);
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* uBit.serial.sendImage(i);
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* @endcode
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*/
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void sendImage(MicroBitImage i);
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/**
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* Reads a MicroBitImage over serial, in csv format.
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*
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*
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* @return a MicroBitImage with the format described over serial
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*
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* Example:
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* @code
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* MicroBitImage i = uBit.serial.readImage(2,2);
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* @endcode
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*
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* Example Serial Format:
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* @code
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* 0,10x0a0,10x0a // 0x0a is a LF terminal which is used as a delimeter
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* @endcode
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* @note this will finish once the dimensions are met.
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*/
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MicroBitImage readImage(int width, int height);
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/**
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* Sends the current pixel values, byte-per-pixel, over serial
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*
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* Example:
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* @code
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* uBit.serial.sendDisplayState();
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* @endcode
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*/
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void sendDisplayState();
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/**
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* Reads pixel values, byte-per-pixel, from serial, and sets the display.
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*
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* Example:
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* @code
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* uBit.serial.readDisplayState();
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* @endcode
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*/
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void readDisplayState();
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};
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#endif
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