Function added to OLED library 'glcdSSD1306-I2C.lib'

georgestheking · Joined: 06 May 2005 Posts: 134

Thanks for your suport

Here is the program

'-------------------------------------------------------------------------------
' SSD1306-I2C_V2x2.BAS
' (c) MCS Electronics 1995-2015
' Sample to demo the 128x64 I2C OLED display [V2]
' (2-Displays version)
'-------------------------------------------------------------------------------
$regfile = "m328pdef.dat"
$hwstack = 50
$swstack = 50
$framesize = 50
$crystal = 16000000
Config Clockdiv = 1 ' make sure the chip runs at 8 MHz

$lib "i2c_twi.lbx" ' we do not use software emulated I2C but the TWI
Config Scl = Portc.5 ' used i2c pins
Config Sda = Portc.4
Config Twi = 400000 ' i2c speed
I2cinit

Dim _contrast As Byte ' Contrast value of OLED. [0-255]
Dim I2c_addr As Byte ' I2C slave address selection. [&H78 or &H7A]
Const Ssd1306_rotate = 1 ' Display rotation. [connection cable is lower side = 0, upper side = 1]
$lib "glcdSSD1306-I2C_V2x2.lib" ' override the default lib with this special one
Config Graphlcd = Custom , Cols = 128 , Rows =32 , Lcdname = "SSD1306"

I2c_addr = &H78 ' Select device [1]
Cls

Setfont Font8x8tt ' select font

I2c_addr = &H78 ' Select device [1]
Lcdat 1 , 1 , "BASCOM-AVR"
Lcdat 2 , 10 , "1995-2015"
Lcdat 3 , 5 , "MCS Electronics" , 1 ' Optional invert
Lcdat 5 , 1 , " Device [1] " , 2 ' Optional solid underline
Lcdat 7 , 1 , " Device [1] " , 3 ' Optional dotted underline

End

$include "font8x8TT.font"

here is the display :

Best regards

Georges

O-Family · Joined: 23 May 2010 Posts: 320 Location: Japan

Although it is not a solution for display problems, we recommend using [glcdSSD1306-I2C_V2.lib] for single OLED.

The OLED you are using has 32 vertical dots, so you cannot specify a Y address of 5 or more in the LCDAT command.
The internal memory of the OLED may wrap around and overlap the display.
Your picture is not clear, so I don't know the details.

georgestheking · Joined: 06 May 2005 Posts: 134

Please find here a better picture,

Best regards

Georges

georgestheking · Joined: 06 May 2005 Posts: 134

Hi,

Here is a more simple code with the other library and a print screen.

Thanks for your help,

Georges