ON Semiconductor
Seed I2C OLED library for mbed
Revision 0:e14364aac2ca, committed 2017-01-25
- Comitter:
- jacobjohnson
- Date:
- Wed Jan 25 18:33:22 2017 +0000
- Commit message:
- Seeed OLED Library for mbed;
Changed in this revision
| SeeedGrayOLED.cpp | Show annotated file Show diff for this revision Revisions of this file |
| SeeedGrayOLED.h | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r e14364aac2ca SeeedGrayOLED.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SeeedGrayOLED.cpp Wed Jan 25 18:33:22 2017 +0000
@@ -0,0 +1,444 @@
+/*
+ * SeeedGrayOLED.cpp
+ * SSD1327 Gray OLED Driver Library for SSD1327
+ *
+ * Copyright (c) 2011 seeed technology inc.
+ * Author : Visweswara R
+ * Create Time : Dec 2011
+ * Change Log :
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "mbed.h"
+#include "SeeedGrayOLED.h"
+#include <stdio.h>
+#include <string.h>
+
+// 8x8 Font ASCII 32 - 127 Implemented
+// Users can modify this to support more characters(glyphs)
+// BasicFont is placed in code memory.
+
+// This font can be freely used without any restriction(It is placed in public domain)
+// const unsigned char BasicFont[][8] PROGMEM=
+
+
+const uint8_t BasicFont[][8] = {
+ {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
+ {0x00,0x00,0x5F,0x00,0x00,0x00,0x00,0x00},
+ {0x00,0x00,0x07,0x00,0x07,0x00,0x00,0x00},
+ {0x00,0x14,0x7F,0x14,0x7F,0x14,0x00,0x00},
+ {0x00,0x24,0x2A,0x7F,0x2A,0x12,0x00,0x00},
+ {0x00,0x23,0x13,0x08,0x64,0x62,0x00,0x00},
+ {0x00,0x36,0x49,0x55,0x22,0x50,0x00,0x00},
+ {0x00,0x00,0x05,0x03,0x00,0x00,0x00,0x00},
+ {0x00,0x1C,0x22,0x41,0x00,0x00,0x00,0x00},
+ {0x00,0x41,0x22,0x1C,0x00,0x00,0x00,0x00},
+ {0x00,0x08,0x2A,0x1C,0x2A,0x08,0x00,0x00},
+ {0x00,0x08,0x08,0x3E,0x08,0x08,0x00,0x00},
+ {0x00,0xA0,0x60,0x00,0x00,0x00,0x00,0x00},
+ {0x00,0x08,0x08,0x08,0x08,0x08,0x00,0x00},
+ {0x00,0x60,0x60,0x00,0x00,0x00,0x00,0x00},
+ {0x00,0x20,0x10,0x08,0x04,0x02,0x00,0x00},
+ {0x00,0x3E,0x51,0x49,0x45,0x3E,0x00,0x00},
+ {0x00,0x00,0x42,0x7F,0x40,0x00,0x00,0x00},
+ {0x00,0x62,0x51,0x49,0x49,0x46,0x00,0x00},
+ {0x00,0x22,0x41,0x49,0x49,0x36,0x00,0x00},
+ {0x00,0x18,0x14,0x12,0x7F,0x10,0x00,0x00},
+ {0x00,0x27,0x45,0x45,0x45,0x39,0x00,0x00},
+ {0x00,0x3C,0x4A,0x49,0x49,0x30,0x00,0x00},
+ {0x00,0x01,0x71,0x09,0x05,0x03,0x00,0x00},
+ {0x00,0x36,0x49,0x49,0x49,0x36,0x00,0x00},
+ {0x00,0x06,0x49,0x49,0x29,0x1E,0x00,0x00},
+ {0x00,0x00,0x36,0x36,0x00,0x00,0x00,0x00},
+ {0x00,0x00,0xAC,0x6C,0x00,0x00,0x00,0x00},
+ {0x00,0x08,0x14,0x22,0x41,0x00,0x00,0x00},
+ {0x00,0x14,0x14,0x14,0x14,0x14,0x00,0x00},
+ {0x00,0x41,0x22,0x14,0x08,0x00,0x00,0x00},
+ {0x00,0x02,0x01,0x51,0x09,0x06,0x00,0x00},
+ {0x00,0x32,0x49,0x79,0x41,0x3E,0x00,0x00},
+ {0x00,0x7E,0x09,0x09,0x09,0x7E,0x00,0x00},
+ {0x00,0x7F,0x49,0x49,0x49,0x36,0x00,0x00},
+ {0x00,0x3E,0x41,0x41,0x41,0x22,0x00,0x00},
+ {0x00,0x7F,0x41,0x41,0x22,0x1C,0x00,0x00},
+ {0x00,0x7F,0x49,0x49,0x49,0x41,0x00,0x00},
+ {0x00,0x7F,0x09,0x09,0x09,0x01,0x00,0x00},
+ {0x00,0x3E,0x41,0x41,0x51,0x72,0x00,0x00},
+ {0x00,0x7F,0x08,0x08,0x08,0x7F,0x00,0x00},
+ {0x00,0x41,0x7F,0x41,0x00,0x00,0x00,0x00},
+ {0x00,0x20,0x40,0x41,0x3F,0x01,0x00,0x00},
+ {0x00,0x7F,0x08,0x14,0x22,0x41,0x00,0x00},
+ {0x00,0x7F,0x40,0x40,0x40,0x40,0x00,0x00},
+ {0x00,0x7F,0x02,0x0C,0x02,0x7F,0x00,0x00},
+ {0x00,0x7F,0x04,0x08,0x10,0x7F,0x00,0x00},
+ {0x00,0x3E,0x41,0x41,0x41,0x3E,0x00,0x00},
+ {0x00,0x7F,0x09,0x09,0x09,0x06,0x00,0x00},
+ {0x00,0x3E,0x41,0x51,0x21,0x5E,0x00,0x00},
+ {0x00,0x7F,0x09,0x19,0x29,0x46,0x00,0x00},
+ {0x00,0x26,0x49,0x49,0x49,0x32,0x00,0x00},
+ {0x00,0x01,0x01,0x7F,0x01,0x01,0x00,0x00},
+ {0x00,0x3F,0x40,0x40,0x40,0x3F,0x00,0x00},
+ {0x00,0x1F,0x20,0x40,0x20,0x1F,0x00,0x00},
+ {0x00,0x3F,0x40,0x38,0x40,0x3F,0x00,0x00},
+ {0x00,0x63,0x14,0x08,0x14,0x63,0x00,0x00},
+ {0x00,0x03,0x04,0x78,0x04,0x03,0x00,0x00},
+ {0x00,0x61,0x51,0x49,0x45,0x43,0x00,0x00},
+ {0x00,0x7F,0x41,0x41,0x00,0x00,0x00,0x00},
+ {0x00,0x02,0x04,0x08,0x10,0x20,0x00,0x00},
+ {0x00,0x41,0x41,0x7F,0x00,0x00,0x00,0x00},
+ {0x00,0x04,0x02,0x01,0x02,0x04,0x00,0x00},
+ {0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00},
+ {0x00,0x01,0x02,0x04,0x00,0x00,0x00,0x00},
+ {0x00,0x20,0x54,0x54,0x54,0x78,0x00,0x00},
+ {0x00,0x7F,0x48,0x44,0x44,0x38,0x00,0x00},
+ {0x00,0x38,0x44,0x44,0x28,0x00,0x00,0x00},
+ {0x00,0x38,0x44,0x44,0x48,0x7F,0x00,0x00},
+ {0x00,0x38,0x54,0x54,0x54,0x18,0x00,0x00},
+ {0x00,0x08,0x7E,0x09,0x02,0x00,0x00,0x00},
+ {0x00,0x18,0xA4,0xA4,0xA4,0x7C,0x00,0x00},
+ {0x00,0x7F,0x08,0x04,0x04,0x78,0x00,0x00},
+ {0x00,0x00,0x7D,0x00,0x00,0x00,0x00,0x00},
+ {0x00,0x80,0x84,0x7D,0x00,0x00,0x00,0x00},
+ {0x00,0x7F,0x10,0x28,0x44,0x00,0x00,0x00},
+ {0x00,0x41,0x7F,0x40,0x00,0x00,0x00,0x00},
+ {0x00,0x7C,0x04,0x18,0x04,0x78,0x00,0x00},
+ {0x00,0x7C,0x08,0x04,0x7C,0x00,0x00,0x00},
+ {0x00,0x38,0x44,0x44,0x38,0x00,0x00,0x00},
+ {0x00,0xFC,0x24,0x24,0x18,0x00,0x00,0x00},
+ {0x00,0x18,0x24,0x24,0xFC,0x00,0x00,0x00},
+ {0x00,0x00,0x7C,0x08,0x04,0x00,0x00,0x00},
+ {0x00,0x48,0x54,0x54,0x24,0x00,0x00,0x00},
+ {0x00,0x04,0x7F,0x44,0x00,0x00,0x00,0x00},
+ {0x00,0x3C,0x40,0x40,0x7C,0x00,0x00,0x00},
+ {0x00,0x1C,0x20,0x40,0x20,0x1C,0x00,0x00},
+ {0x00,0x3C,0x40,0x30,0x40,0x3C,0x00,0x00},
+ {0x00,0x44,0x28,0x10,0x28,0x44,0x00,0x00},
+ {0x00,0x1C,0xA0,0xA0,0x7C,0x00,0x00,0x00},
+ {0x00,0x44,0x64,0x54,0x4C,0x44,0x00,0x00},
+ {0x00,0x08,0x36,0x41,0x00,0x00,0x00,0x00},
+ {0x00,0x00,0x7F,0x00,0x00,0x00,0x00,0x00},
+ {0x00,0x41,0x36,0x08,0x00,0x00,0x00,0x00},
+ {0x00,0x02,0x01,0x01,0x02,0x01,0x00,0x00},
+ {0x00,0x02,0x05,0x05,0x02,0x00,0x00,0x00}
+};
+
+
+SeeedGrayOLED::SeeedGrayOLED(PinName sda, PinName scl):
+ _device(sda, scl)
+{
+}
+
+
+void SeeedGrayOLED::init(void)
+{
+ sendCommand(0xFD); // Unlock OLED driver IC MCU interface from entering command. i.e: Accept commands
+ sendCommand(0x12);
+ sendCommand(0xAE); // Set display off
+ sendCommand(0xA8); // set multiplex ratio
+ sendCommand(0x5F); // 96
+ sendCommand(0xA1); // set display start line
+ sendCommand(0x00);
+ sendCommand(0xA2); // set display offset
+ sendCommand(0x60);
+ sendCommand(0xA0); // set remap
+ sendCommand(0x46);
+ sendCommand(0xAB); // set vdd internal
+ sendCommand(0x01); //
+ sendCommand(0x81); // set contrasr
+ sendCommand(0x53); // 100 nit
+ sendCommand(0xB1); // Set Phase Length
+ sendCommand(0X51); //
+ sendCommand(0xB3); // Set Display Clock Divide Ratio/Oscillator Frequency
+ sendCommand(0x01);
+ sendCommand(0xB9); //
+ sendCommand(0xBC); // set pre_charge voltage/VCOMH
+ sendCommand(0x08); // (0x08);
+ sendCommand(0xBE); // set VCOMH
+ sendCommand(0X07); // (0x07);
+ sendCommand(0xB6); // Set second pre-charge period
+ sendCommand(0x01); //
+ sendCommand(0xD5); // enable second precharge and enternal vsl
+ sendCommand(0X62); // (0x62);
+ sendCommand(0xA4); // Set Normal Display Mode
+ sendCommand(0x2E); // Deactivate Scroll
+ sendCommand(0xAF); // Switch on display
+ wait_ms(100);
+
+ // Row Address
+ sendCommand(0x75); // Set Row Address
+ sendCommand(0x00); // Start 0
+ sendCommand(0x5f); // End 95
+
+
+ // Column Address
+ sendCommand(0x15); // Set Column Address
+ sendCommand(0x08); // Start from 8th Column of driver IC. This is 0th Column for OLED
+ sendCommand(0x37); // End at (8 + 47)th column. Each Column has 2 pixels(segments)
+
+ // Init gray level for text. Default:Brightest White
+ grayH= 0xF0;
+ grayL= 0x0F;
+}
+
+void SeeedGrayOLED::sendCommand(unsigned char command)
+{
+ int transmissionSuccessful;
+ _device.start();
+ transmissionSuccessful = _device.write(SeeedGrayOLED_Address << 1);
+ Thread::wait(5);
+ transmissionSuccessful |= _device.write(SeeedGrayOLED_Command_Mode);
+ Thread::wait(5);
+ transmissionSuccessful |= _device.write(command);
+ Thread::wait(5);
+ _device.stop();
+ Thread::wait(50);
+ // return (transmissionSuccessful);
+}
+
+void SeeedGrayOLED::setContrastLevel(unsigned char ContrastLevel)
+{
+ sendCommand(SeeedGrayOLED_Set_ContrastLevel_Cmd);
+ sendCommand(ContrastLevel);
+}
+
+void SeeedGrayOLED::setHorizontalMode()
+{
+ sendCommand(0xA0); // remap to
+ sendCommand(0x42); // horizontal mode
+
+ // Row Address
+ sendCommand(0x75); // Set Row Address
+ sendCommand(0x00); // Start 0
+ sendCommand(0x5f); // End 95
+
+ // Column Address
+ sendCommand(0x15); // Set Column Address
+ sendCommand(0x08); // Start from 8th Column of driver IC. This is 0th Column for OLED
+ sendCommand(0x37); // End at (8 + 47)th column. Each Column has 2 pixels(or segments)
+}
+
+void SeeedGrayOLED::setVerticalMode()
+{
+ sendCommand(0xA0); // remap to
+ sendCommand(0x46); // Vertical mode
+}
+
+void SeeedGrayOLED::setTextXY(unsigned char Row, unsigned char Column)
+{
+ //Column Address
+ sendCommand(0x15); /* Set Column Address */
+ sendCommand(0x08+(Column*4)); /* Start Column: Start from 8 */
+ sendCommand(0x37); /* End Column */
+ // Row Address
+ sendCommand(0x75); /* Set Row Address */
+ sendCommand(0x00+(Row*8)); /* Start Row*/
+ sendCommand(0x07+(Row*8)); /* End Row*/
+}
+
+void SeeedGrayOLED::clearDisplay()
+{
+ unsigned char i,j;
+ for(j=0;j<48;j++)
+ {
+ for(i=0;i<96;i++) //clear all columns
+ {
+ sendData(0x00);
+ }
+ }
+
+}
+
+void SeeedGrayOLED::sendData(unsigned char Data)
+{
+ int transmissionSuccessful;
+ _device.start();
+ transmissionSuccessful = _device.write(SeeedGrayOLED_Address << 1);
+ transmissionSuccessful |= _device.write(SeeedGrayOLED_Data_Mode);
+ transmissionSuccessful |= _device.write(Data);
+ _device.stop();
+ // return (transmissionSuccessful);
+}
+
+void SeeedGrayOLED::setGrayLevel(unsigned char grayLevel)
+{
+ grayH = (grayLevel << 4) & 0xF0;
+ grayL = grayLevel & 0x0F;
+}
+
+void SeeedGrayOLED::putChar(unsigned char C)
+{
+ if(C < 32 || C > 127) //Ignore non-printable ASCII characters. This can be modified for multilingual font.
+ {
+ C=' '; //Space
+ }
+
+
+ for(char i=0;i<8;i=i+2)
+ {
+ for(char j=0;j<8;j++)
+ {
+ // Character is constructed two pixel at a time using vertical mode from the default 8x8 font
+ char c=0x00;
+ char bit1=(BasicFont[C-32][i] >> j) & 0x01;
+ char bit2=(BasicFont[C-32][i+1] >> j) & 0x01;
+ // Each bit is changed to a nibble
+ c|=(bit1)?grayH:0x00;
+ c|=(bit2)?grayL:0x00;
+ sendData(c);
+ }
+ }
+}
+
+void SeeedGrayOLED::putString(const char *String)
+{
+ unsigned char i=0;
+ while(String[i])
+ {
+ putChar(String[i]);
+ i++;
+ }
+}
+
+unsigned char SeeedGrayOLED::putNumber(long long_num)
+{
+ unsigned char char_buffer[10]="";
+ unsigned char i = 0;
+ unsigned char f = 0;
+
+ if (long_num < 0)
+ {
+ f=1;
+ putChar('-');
+ long_num = -long_num;
+ }
+ else if (long_num == 0)
+ {
+ f=1;
+ putChar('0');
+ return f;
+ }
+
+ while (long_num > 0)
+ {
+ char_buffer[i++] = long_num % 10;
+ long_num /= 10;
+ }
+
+ f=f+i;
+ for(; i > 0; i--)
+ {
+ putChar('0'+ char_buffer[i - 1]);
+ }
+ return f;
+
+}
+
+
+
+void SeeedGrayOLED::drawBitmap(unsigned char *bitmaparray,int bytes)
+{
+ char localAddressMode = addressingMode;
+ if(addressingMode != HORIZONTAL_MODE)
+ {
+ //Bitmap is drawn in horizontal mode
+ setHorizontalMode();
+ }
+
+ for(int i=0;i<bytes;i++)
+ {
+
+ for(int j=0;j<8;j=j+2)
+ {
+ char c=0x00;
+ char bit1=bitmaparray[i] << j & 0x80;
+ char bit2=bitmaparray[i] << (j+1) & 0x80;
+
+ // Each bit is changed to a nibble
+ c|=(bit1)?grayH:0x00;
+ // Each bit is changed to a nibble
+ c|=(bit2)?grayL:0x00;
+ sendData(c);
+ }
+ }
+ if(localAddressMode == VERTICAL_MODE)
+ {
+ //If Vertical Mode was used earlier, restore it.
+ setVerticalMode();
+ }
+
+}
+
+void SeeedGrayOLED::setHorizontalScrollProperties(bool direction,unsigned char startRow, unsigned char endRow,unsigned char startColumn, unsigned char endColumn, unsigned char scrollSpeed)
+{
+ /*
+Use the following defines for 'direction' :
+
+ Scroll_Left
+ Scroll_Right
+
+Use the following defines for 'scrollSpeed' :
+
+ Scroll_2Frames
+ Scroll_3Frames
+ Scroll_4Frames
+ Scroll_5Frames
+ Scroll_25Frames
+ Scroll_64Frames
+ Scroll_128Frames
+ Scroll_256Frames
+
+*/
+
+ if(Scroll_Right == direction)
+ {
+ //Scroll Right
+ sendCommand(0x27);
+ }
+ else
+ {
+ //Scroll Left
+ sendCommand(0x26);
+ }
+ sendCommand(0x00); //Dummmy byte
+ sendCommand(startRow);
+ sendCommand(scrollSpeed);
+ sendCommand(endRow);
+ sendCommand(startColumn+8);
+ sendCommand(endColumn+8);
+ sendCommand(0x00); //Dummmy byte
+
+}
+
+void SeeedGrayOLED::activateScroll()
+{
+ sendCommand(SeeedGrayOLED_Activate_Scroll_Cmd);
+}
+
+void SeeedGrayOLED::deactivateScroll()
+{
+ sendCommand(SeeedGrayOLED_Dectivate_Scroll_Cmd);
+}
+
+void SeeedGrayOLED::setNormalDisplay()
+{
+ sendCommand(SeeedGrayOLED_Normal_Display_Cmd);
+}
+
+void SeeedGrayOLED::setInverseDisplay()
+{
+ sendCommand(SeeedGrayOLED_Inverse_Display_Cmd);
+}
+
+
diff -r 000000000000 -r e14364aac2ca SeeedGrayOLED.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SeeedGrayOLED.h Wed Jan 25 18:33:22 2017 +0000
@@ -0,0 +1,117 @@
+/*
+ * SeeedGrayOLED.h
+ * SSD1327 Gray OLED Driver Library for SSD1327
+ *
+ * Copyright (c) 2011 seeed technology inc.
+ * Author : Visweswara R
+ * Create Time : Dec 2011
+ * Change Log :
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef SeeedGrayOLED_data_H
+#define SeeedGrayOLED_data_H
+
+// SeeedGrayOLED Instruction set addresses
+
+// #include "Arduino.h"
+#include "mbed.h"
+#include <inttypes.h>
+
+
+#define VERTICAL_MODE 01
+#define HORIZONTAL_MODE 02
+
+#define SeeedGrayOLED_Address 0x3c
+#define SeeedGrayOLED_Command_Mode 0x80
+#define SeeedGrayOLED_Data_Mode 0x40
+
+#define SeeedGrayOLED_Display_Off_Cmd 0xAE
+#define SeeedGrayOLED_Display_On_Cmd 0xAF
+
+#define SeeedGrayOLED_Normal_Display_Cmd 0xA4
+#define SeeedGrayOLED_Inverse_Display_Cmd 0xA7
+#define SeeedGrayOLED_Activate_Scroll_Cmd 0x2F
+#define SeeedGrayOLED_Dectivate_Scroll_Cmd 0x2E
+#define SeeedGrayOLED_Set_ContrastLevel_Cmd 0x81
+
+#define Scroll_Left 0x00
+#define Scroll_Right 0x01
+
+#define Scroll_2Frames 0x7
+#define Scroll_3Frames 0x4
+#define Scroll_4Frames 0x5
+#define Scroll_5Frames 0x0
+#define Scroll_25Frames 0x6
+#define Scroll_64Frames 0x1
+#define Scroll_128Frames 0x2
+#define Scroll_256Frames 0x3
+
+
+class SeeedGrayOLED {
+public:
+
+ /** Create a new TDA7419 communication interface
+ *
+ * @param sda is the pin for I2C SDA
+ * @param scl is the pin for I2C SCL
+ */
+ SeeedGrayOLED(PinName sda, PinName scl);
+
+
+ char addressingMode;
+
+ void init(void);
+
+ void setNormalDisplay();
+ void setInverseDisplay();
+
+ void sendCommand(unsigned char command);
+ void sendData(unsigned char Data);
+ void setGrayLevel(unsigned char grayLevel);
+
+ void setVerticalMode();
+ void setHorizontalMode();
+
+ void setTextXY(unsigned char Row, unsigned char Column);
+ void clearDisplay();
+ void setContrastLevel(unsigned char ContrastLevel);
+ void putChar(unsigned char c);
+ void putString(const char *String);
+ unsigned char putNumber(long n);
+ unsigned char putFloat(float floatNumber,unsigned char decimal);
+ unsigned char putFloat(float floatNumber);
+
+ void drawBitmap(unsigned char *bitmaparray,int bytes);
+
+ void setHorizontalScrollProperties(bool direction,unsigned char startRow, unsigned char endRow,unsigned char startColumn, unsigned char endColumn, unsigned char scrollSpeed);
+ void activateScroll();
+ void deactivateScroll();
+
+private:
+
+ // Signals related to I2C communication
+ I2C _device;
+
+ unsigned char grayH;
+ unsigned char grayL;
+
+
+};
+
+
+#endif
+