Grove - OLED Display 0.96 inch
Grove - OLED Display 0.96” module is an OLED monochrome 128×64dot matrix display module with Grove 4pin I2C Interface.Comparing to LCD, OLED screens are way more competitive, which has a number of advantages such as high brightness, self-emission, high contrast ratio, slim / thin outline, wide viewing angle, wide temperature range, and low power consumption. It has bigger screen so that it can display more contents than the OLED 96×96.
- Grove compatible interface
- Communicate Mode:I2C
- Low power consumption
- Display Color: White
- Wide range of operating temperature:-20℃~70℃
Please notice: heavy impact or stress on the OLED will cause the breakdown of screen.
More details about Grove modules please refer to Grove System
|Power Voltage (VCC)||3.3||5.0||5.5||V|
|Active Area||-||21.74(W)×11.175 (H)||-||mm|
|Dot Pitch||-||0.17(W)×0.175 (H)||-||mm|
|Dot Size||-||0.15(W)×0.15 (H)||-||mm|
|Wide range of operating temperature||-||-20~70||-||℃|
The OLED128*64 uses all the pins of SSD1308 chip, the default original point is on the top left corner. You can also change the original point by adjusting the program and in order to display your desired patterns. For more details, please consult SSD1308_1.0.pdf and LY190-128064.pdf.
Here we demonstrate how to display “Hello World” on the screen.
Plug the Grove OLED Display 128*64 onto the I2C port on Grove Base Shield, and then plug the Base Shield onto Arduino or Seeeduino;
Download the library code from GitHub;
- Download and upload the code. If you do not know how to upload an Arduino sketch, please visit https://www.arduino.cc/en/Guide/Windows for Windows user or https://www.arduino.cc/en/Guide/MacOSX for Mac user. You can see the result as below.
Tips: if you use Seeeduino, please also select Boards under Tools as you upload sketches.
With Beaglebone Green
To begin editing programs that live on BBG, you can use the Cloud9 IDE. As a simple exercise to become familiar with Cloud9 IDE, creating a simple application to blink one of the 4 user programmable LEDs on the BeagleBone is a good start. If this is your first time to use Cloud9 IDE, please follow this link.
Step1: Click the “+” in the top-right to create a new file.
Step2:Copy and paste the following code into the new tab
from Adafruit_I2C import Adafruit_I2C import time import math Oled = Adafruit_I2C(0x3c) Command_Mode=0x80 Data_mode=0x40 grayH= 0xF0 grayL= 0x0F Normal_Display_Cmd=0xA4 BasicFont = [[0 for x in xrange(8)] for x in xrange(10)] BasicFont=[[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]] def oled_init(): 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 time.sleep(0.1) # delay(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 def sendCommand(byte): Oled.write8(Command_Mode,byte) def sendData(byte): Oled.write8(Data_mode,byte) def multi_comm(commands): for c in commands: sendCommand(c) def oled_clearDisplay(): for j in range (0,48): for i in range (0,96): sendData(0x00) def oled_setNormalDisplay(): sendCommand(Normal_Display_Cmd) def oled_setVerticalMode(): sendCommand(0xA0) # remap to sendCommand(0x46) # Vertical mode def oled_setTextXY(Row,Column): 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 def oled_putChar(C): C_add=ord(C) if C_add<32 or C_add>127: # Ignore non-printable ASCII characters C=' ' C_add=ord(C) for i in range(0,8,2): for j in range(0,8): c=0x00 bit1=((BasicFont[C_add-32][i])>>j)&0x01 bit2=((BasicFont[C_add-32][i+1])>>j)&0x01 if bit1: c=c|grayH else: c=c|0x00 if bit2: c=c|grayL else: c=c|0x00 sendData(c) def oled_putString(String): for i in range(len(String)): oled_putChar(String[i]) if __name__=="__main__": oled_init() oled_setNormalDisplay() oled_setTextXY(0,0) oled_putString("Hello") time.sleep(10) #Oled.write8(Command_Mode,0xFD) #sendCommand(0xFD) print 'hello world'
Step3: Save the file by clicking the disk icon with with the .py extension.
Step4: Connect Grove - OLED to Grove I2C socket on BBG.
Step5: Run the code. You’ll find that the Grove - OLED outputs “Hello World”.
- GitHub Library for OLED
- Grove-OLED128x64 Schematic.pdf
- Resources of SSD1308_1.0.pdf
- Resources of LY190-128064.pdf
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