Seeed Grove User manual
2
Document Revision History
Revision
Date
Author
Description
1.0
Sep 21, 2015
Victor.He
Create file
3
Contents
Document Revision History···································································································2
1. Introduction ···················································································································2
2. Features··························································································································3
3. Specifications ·················································································································4
4. Usage······························································································································5
4.1 With Arduino····················································································································· 5
4.2 With Beaglebone Green·································································································· 10
5. Resources ·····················································································································17
6. Support·························································································································18
1
Disclaimer
For physical injuries and possessions loss caused by those reasons which are not related to product quality,
such as operating without following manual guide, natural disasters or force majeure, we take no
responsibility for that.
Under the supervision of Seeed Technology Inc., this manual has been compiled and published which
covered the latest product description and specification. The content of this manual is subject to change
without notice.
Copyright
The design of this product (including software) and its accessories is under tutelage of laws. Any action to
violate relevant right of our product will be penalized through law. Please consciously observe relevant local
laws in the use of this product.
2
1. Introduction
LED 128×64 Display 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.
3
2. Features
Grove compatible interface
Communicate Mode:I2C
Low power consumption
Display Color: White
Wide range of operating temperature:-20℃~70℃
4
3. Specifications
Items
Min
Norm
Max
Unit
Power Voltage (VCC)
3.3
5.0
5.5
V
Driver IC
SSD1308Z
-
Display Color
White
-
Dot Matrix
128×64
-
Panel Size
26.7(W)×19.26(H)
mm
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
℃
5
4. Usage
4.1 With Arduino
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 consultFile:SSD1308_1.0.pdf and File:LY190-128064.pdf.
Here we demonstrate how to display "Seeedstudio" 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 Adriano;
Download the library File:OLED_Display128X64 Library;
Unzip it into the libraries file of Arduino IDE by the path: ..\arduino-1.0\libraries.
Open the code directly by the path: File -> Example
->OLED_Display12864->OLED_Bitmap_Inverse_Display.
#include <Wire.h>
#include <SeeedOLED.h>
#include <avr/pgmspace.h>
6
static unsigned char SeeedLogo[] PROGMEM ={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,
0x00,0x00,0x00,0x00,0x80,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x60,0xf0,0xc0,0x00,0x00,0x00,0xfc,0xff,0x87,0x00,0x00,
0x00,0x00,0x00,0x00,0x03,
0xff,0xfc,0x00,0x00,0x00,0x80,0xf0,0x20,0x00,0x00,0x80,
0xc0,0xc0,0x60,0xe0,0xc0,
0xc0,0x00,0x00,0x00,0xc0,0xc0,0xc0,0x60,0xe0,0xc0,0xc0,
0x80,0x00,0x00,0x80,0xc0,
0xc0,0xe0,0x60,0xc0,0xc0,0x80,0x00,0x00,0x00,0xc0,0xc0,
0xc0,0x60,0xe0,0xc0,0xc0,
0x80,0x00,0x00,0x80,0xc0,0xc0,0xe0,0xe0,0xc0,0xc0,0xf8,
0xf8,0x00,0x00,0x00,0x00,
0x00,0xc0,0xc0,0xe0,0x60,0xc0,0xc0,0x80,0x00,0xc0,0xf0,
0xf0,0xf0,0xc0,0x00,0xc0,
0xc0,0x00,0x00,0x00,0x00,0xc0,0xc0,0x00,0x00,0x80,0xc0,
0xc0,0xe0,0xe0,0xc0,0xc0,
0xf8,0xf8,0x00,0xd8,0xd8,0x00,0x00,0x80,0xc0,0xc0,0xe0,
0x60,0xc0,0xc0,0x80,0x00,
0x00,0x03,0x0f,0x1e,0x3c,0x70,0xe3,0xcf,0x9f,0x30,0x00,
0x00,0x00,0x00,0x70,0xbf,
0xcf,0xe3,0x70,0x78,0x3e,0x0f,0x03,0x00,0x00,0x00,0x33,
0x77,0x66,0x66,0x66,0x6c,
0x7d,0x18,0x00,0x1f,0x3f,0x76,0x66,0x66,0x66,0x76,0x37,
0x07,0x00,0x0f,0x3f,0x7f,
0x66,0x66,0x66,0x66,0x77,0x27,0x07,0x00,0x1f,0x3f,0x76,
0x66,0x66,0x66,0x76,0x37,
0x07,0x00,0x0f,0x3f,0x71,0x60,0x60,0x60,0x60,0x31,0x7f,
0x7f,0x00,0x00,0x00,0x00,
7
0x11,0x37,0x67,0x66,0x66,0x6c,0x7d,0x38,0x00,0x00,0x3f,
0x7f,0x3f,0x00,0x00,0x1f,
0x3f,0x70,0x60,0x60,0x70,0x7f,0x7f,0x00,0x0f,0x3f,0x71,
0x60,0x60,0x60,0x60,0x31,
0x7f,0x7f,0x00,0x7f,0x7f,0x00,0x06,0x1f,0x3b,0x60,0x60,
0x60,0x60,0x71,0x3f,0x1f,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x00,
0x00,0x00,0x00,0x01,0x01,
0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xf8,0x48,0x48,
0x48,0xb0,0x00,0xc0,0x20,
0x20,0x20,0xc0,0x00,0xc0,0x20,0x20,0x20,0xc0,0x00,0x40,
0xa0,0xa0,0xa0,0x20,0x00,
0x00,0x20,0xf0,0x20,0x20,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x08,0x08,0xf8,0x08,
0x08,0x00,0xc0,0x20,0x20,0x20,0xf8,0x00,0xc0,0xa0,0xa0,
0xa0,0xc0,0x00,0x20,0xa0,
0xa0,0xa0,0xc0,0x00,0x40,0xa0,0xa0,0xa0,0x20,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0xf8,0x48,0x48,0x48,0x08,
0x00,0x20,0x40,0x80,0x40,
0x20,0x00,0x00,0x20,0xf0,0x20,0x20,0x00,0xc0,0xa0,0xa0,
0xa0,0xc0,0x00,0xe0,0x00,
0x20,0x20,0xc0,0x00,0xc0,0x20,0x20,0x20,0xf8,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x02,0x02,
0x02,0x01,0x00,0x01,0x02,
0x02,0x02,0x01,0x00,0x01,0x02,0x02,0x02,0x01,0x00,0x02,
0x02,0x02,0x02,0x01,0x00,
0x00,0x00,0x01,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x02,0x02,0x03,0x02,
8
0x02,0x00,0x01,0x02,0x02,0x02,0x03,0x00,0x01,0x02,0x02,
0x02,0x00,0x00,0x01,0x02,
0x02,0x02,0x01,0x02,0x02,0x02,0x02,0x02,0x01,0x00,0x00,
0x08,0x06,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x02,0x02,0x82,0x02,
0x00,0x02,0x01,0x01,0x01,
0x02,0x00,0x00,0x00,0x01,0x02,0x02,0x00,0x01,0x02,0x02,
0x02,0x00,0x00,0x03,0x00,
0x00,0x00,0x03,0x00,0x01,0x02,0x02,0x02,0x03,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x82,0x8c,0x60,0x1c,0x02,0x00,0x1c,0x22,
0x22,0x22,0x1c,0x00,0x1e,
0x20,0x20,0x00,0x3e,0x00,0x00,0x3e,0x04,0x02,0x02,0x00,
0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x3e,0x04,0x02,0x02,0x00,0x1c,0x2a,0x2a,0x2a,
0x0c,0x00,0x12,0x2a,0x2a,
0x2a,0x1c,0x20,0x1c,0x22,0x22,0x22,0x14,0x00,0x3f,0x00,
0x02,0x02,0x3c,0x00,0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00
};
9
void setup()
{
Wire.begin();
SeeedOled.init(); //initialze SEEED OLED display
DDRB|=0x21;//digital pin 8, LED glow indicates OLED properly
Connected .
PORTB |= 0x21;
SeeedOled.setInverseDisplay(); // Set Display to inverse mode
SeeedOled.clearDisplay(); // clear the screen and set
start position to top left corner
SeeedOled.drawBitmap(SeeedLogo,1024); // 1024 = 128 Pixels * 64
Pixels / 8
}
void loop()
{
}
Upload the code. Please click here if you do not know how to upload.
You can see:
10
You can open other examples in the same menu bar. The key code here is the main instruction program
extracted by the example, hope it can be helpful for you to understand clearly. For more details, please
check the Demo code Resources linked.
Note:This module is similar to Grove - OLED Display 96*96 in its usage and some library functions, you can
make an gray 128*64 image arbitrary that can be shown on OLED 128*64. Please consult the latter
one's Usage part of WIKI page for detailed instructions.
4.2 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.
11
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 =[[0for 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],
12
[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],
13
[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
14
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
15
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
16
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".
Other manuals for Grove
14
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