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SO1602A/SO1602A.h
- Committer:
- yabahiro
- Date:
- 2019-11-07
- Revision:
- 3:be82925eced0
- Parent:
- 0:0311bb0b38f7
File content as of revision 3:be82925eced0:
/** SO1602A is Organic-LED, and has 16 chars/line and 2 lines. * * This librarry supports "printf()" C format. * * * @code * #include "mbed.h" * #include "SO1602A.h" * I2C i2c(p28, p27); * SO1602A oled(i2c); * DigitalOut led[]= {LED1, LED2, LED3, LED4}; * int main() * { * oled.init(); * int iter= 0; * while(true) { * led[0] = !led[0]; * oled.printf("iter: %5.5d.", iter); * wait(1.0f); * if(iter%10 == 0) // 10s * oled.clear(); * iter++; * } * } * @endcode */ #pragma once #include "mbed.h" // SA0(Pin4); Low: i2c_addr= 0x78, High: 0x7a; // DDRAM addr. Line1: 0x00 ~ 0x0f. Line2: 0x20 ~ 0x2f. class SO1602A : public Stream{ public: SO1602A (PinName sda, PinName scl, char address= 0x78); SO1602A (I2C &_i2c, char address= 0x78); ~SO1602A(); // ******************** printf() future of C-language. *************************** /** Initialize */ void init(); /** Clear Display. */ void clear(); /** Set Position of char. * @param col: column, row: rows. */ void locate(int col, int row); /** Set Contrast. * @param val; 256steps, 0x00 ~ 0xff. Contrast increas as the value. */ void setContrast(char val); /** Set Display flag. * @parm Enable Display, Cursor turned on, Cursor Blink. */ void setDispFlag(bool disp= true, bool cursor= true, bool blink= true); private: I2C *p_i2c; I2C &i2c; char addr; char buf[3]; int col, row; bool cmd(char chr); // virtual func for printf() in Stream-class. virtual int _putc(int val); virtual int _getc(); // Function SET void setRE(); void clearRE(); void setSD(); void clearSD(); }; // EOF