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O-Family
Joined: 23 May 2010
Posts: 320
Location: Japan
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 Posted: Thu Dec 06, 2018 8:24 am Post subject: Function added to OLED library 'glcdSSD1306-I2C.lib' |
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The following functions have been added to the I2C OLED display library "glcdSSD1306-I2C.lib".
1. Added option to rotate display 180 degrees.
Const Ssd1306_rotate = 1 'Display rotation. [connection cable is lower side = 0, upper side = 1]
2. Control byte added to the "GLCDCMD" instruction.
Normal/Inverse Display [A6:Normal , A7:Inverse]
Display ON/OFF [AE:OFF(sleep mode) , AF:ON(normal mode)]
3. Contrast can be changed.
_contrast = 0 : Glcdcmd &H81 'Change contrast of the OLED [0:dark - 255:bright]
4. Underline option added to the "LCDAT" instruction. [2:Solid , 3:dotted]
| Code: |
'-------------------------------------------------------------------------------
' SSD1306-I2C_V2.BAS
' (c) MCS Electronics 1995-2015
' Sample to demo the 128x64 I2C OLED display [V2]
'
'-------------------------------------------------------------------------------
$regfile = "m88pdef.dat"
$hwstack = 32
$swstack = 32
$framesize = 32
$crystal = 8000000
Config Clockdiv = 1 ' make sure the chip runs at 8 MHz
Config Scl = Portc.5 ' used i2c pins
Config Sda = Portc.4
Config Twi = 400000 ' i2c speed
I2cinit
$lib "i2c_twi.lbx" ' we do not use software emulated I2C but the TWI
$lib "glcdSSD1306-I2C_V2.lib" ' override the default lib with this special one
#if _build < 20784
Dim ___lcdrow As Byte , ___lcdcol As Byte ' dim these for older compiler versions
#endif
Dim _contrast As Byte ' Contrast value of OLED. [0-255]
'Const Ssd1306_rotate = 1 ' Display rotation. [connection cable is lower side = 0, upper side = 1]
Config Graphlcd = Custom , Cols = 128 , Rows = 64 , Lcdname = "SSD1306"
Cls
Setfont Font8x8tt ' select font
Do
Lcdat 1 , 1 , "BASCOM-AVR"
Lcdat 2 , 10 , "1995-2015"
Lcdat 3 , 5 , "MCS Electronics" , 1 ' Optional invert
Lcdat 5 , 1 , " ABCDefg012345678 " , 2 ' Optional solid underline
Lcdat 7 , 1 , " ABCDefg012345678 " , 3 ' Optional dotted underline
Wait 3
Glcdcmd &HA7 ' Normal/Inverse Display [A7:Inverse]
Wait 3
Glcdcmd &HA6 ' Normal/Inverse Display [A6:Normal]
Wait 3
_contrast = 0 : Glcdcmd &H81 ' Change contrast of the OLED [0:dark - 255:bright]
Wait 3
_contrast = 255 : Glcdcmd &H81 ' Change contrast of the OLED [0:dark - 255:bright]
Wait 3
Glcdcmd &HAE ' Display ON/OFF [AE:OFF(sleep mode) , AF:ON(normal mode)]
Wait 3
Glcdcmd &HAF ' Display ON/OFF [AE:OFF(sleep mode) , AF:ON(normal mode)]
Wait 3
Showpic 0 , 0 , Plaatje
Wait 3
Cls
Loop
End
$include "font8x8TT.font" ' this is a true type font with variable spacing
Plaatje:
$bgf "ks108.bgf" ' include the picture data
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-------------------------------------------------
Postscript
Modified the library for XMEGA and XTINY.
glcdSSD1306-I2C_V2.lib (Revision 002)
Last edited by O-Family on Sat Jul 09, 2022 11:06 am; edited 2 times in total |
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albertsm
Joined: 09 Apr 2004
Posts: 5921
Location: Holland
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| Posted: Sun Dec 09, 2018 1:38 pm Post subject: |
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Thanks for adding these useful options and sharing them 
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BoA
Joined: 13 Jan 2019
Posts: 1
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| Posted: Tue Jan 15, 2019 5:11 pm Post subject: |
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Thanks a lot... it work ..  ) |
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mrak
Joined: 14 Dec 2005
Posts: 24
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| Posted: Mon Sep 09, 2019 11:03 pm Post subject: Library support for two SSD1306 displays on I2C bus |
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| The SSD1306-I2C displays enable configuration to have two devices on the same I2C bus under different addresses. Does the current "glcdSSD1306-I2C.lib" can be configured for such a setup? If no, do you plan to include such functionality? |
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O-Family
Joined: 23 May 2010
Posts: 320
Location: Japan
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| Posted: Tue Sep 10, 2019 9:22 am Post subject: |
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I think that is possible by adding and modifying the library.
I will consider a fix when I have time. |
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mrak
Joined: 14 Dec 2005
Posts: 24
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| Posted: Tue Sep 10, 2019 4:23 pm Post subject: Library support for two SSD1306 displays on I2C bus |
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That would be excellent!
Users could get the most out of the "glcdSSD1306-I2C.lib" library and enjoy the experience of having full capability provided by two SSD1306 displays working in pair when one display is insufficient, like in my project. |
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Paulvk
Joined: 28 Jul 2006
Posts: 1257
Location: SYDNEY
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| Posted: Tue Sep 10, 2019 11:39 pm Post subject: |
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There are also I2C switces that enable multiple devices with the same address on a buss
I am using one with two ADCs that only have one address.
Regards paul |
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O-Family
Joined: 23 May 2010
Posts: 320
Location: Japan
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| Posted: Fri Sep 20, 2019 3:40 am Post subject: 2-Displays version |
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A version that controls two displays was created at the request of the user.
Enter the I2C slave address in the variable [I2c_addr] and specify the device. [&H78 or &H7A]
The OLED on the left side of the image is not a color, it is two fixed color types.
| Code: |
'-------------------------------------------------------------------------------
' SSD1306-I2C_V2x2.BAS
' (c) MCS Electronics 1995-2015
' Sample to demo the 128x64 I2C OLED display [V2]
' (2-Displays version)
'-------------------------------------------------------------------------------
$regfile = "m88pdef.dat"
$hwstack = 32
$swstack = 32
$framesize = 32
$crystal = 8000000
Config Clockdiv = 1 ' make sure the chip runs at 8 MHz
Config Scl = Portd.2 ' When using software I2C.
Config Sda = Portd.3
Config I2cdelay = 1
I2cinit
'$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 = 64 , Lcdname = "SSD1306"
I2c_addr = &H78 ' Select device [1]
Cls
I2c_addr = &H7A ' Select device [2]
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
I2c_addr = &H7A ' Select device [2]
Lcdat 1 , 1 , "BASCOM-AVR"
Lcdat 2 , 10 , "1995-2015"
Lcdat 3 , 5 , "MCS Electronics" , 1 ' Optional invert
Lcdat 5 , 1 , " Device [2] " , 2 ' Optional solid underline
Lcdat 7 , 1 , " Device [2] " , 3 ' Optional dotted underline
End
$include "font8x8TT.font" ' this is a true type font with variable spacing
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-----------------------------------------
Postscript
Modified the library for XMEGA and XTINY.
glcdSSD1306-I2C_V2x2.lib (Revision 002)
Last edited by O-Family on Sat Jul 09, 2022 11:07 am; edited 2 times in total |
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albertsm
Joined: 09 Apr 2004
Posts: 5921
Location: Holland
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| Posted: Fri Sep 20, 2019 9:40 am Post subject: |
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excellent work. thanks !
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Memen
Joined: 06 May 2016
Posts: 13
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| Posted: Fri Sep 20, 2019 8:19 pm Post subject: |
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| Fine! 1995 - 2019 amendment))) |
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timbak
Joined: 18 Oct 2018
Posts: 8
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| Posted: Mon Jan 18, 2021 3:33 am Post subject: |
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O-Family can you pls help with run this lib on Xmega?
Trying to run this on atxmega32a4u and getting errors:
| Code: | Dim Twi_start As Byte
Open "twic" For Binary As #2
Config Twic = 400000
I2cinit #2
$lib "glcdSSD1306-I2C_V2.lib"
Config Graphlcd = Custom , Cols = 128 , Rows = 64 , Lcdname = "SSD1306"
Cls
Setfont Font8x8tt
Lcdat 1 , 1 , "BASCOM-AVR" |
| Quote: | Error : 5 Line : -625 No more space for BIT [_CONTRAST] , in File : C:\MCS\BASCAVR2083\LIB\GLCDSSD1306-I2C_V2.LIB
Error : 320 Line : 104 [syntax error, token = '{'] , in File : C:\MCS\BASCAVR2083\LIB\GLCDSSD1306-I2C_V2.LIB |
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O-Family
Joined: 23 May 2010
Posts: 320
Location: Japan
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| Posted: Mon Jan 18, 2021 9:53 am Post subject: |
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Declare _contrast as described in the test program I posted.
| Code: | Dim _contrast As Byte ' Contrast value of OLED. [0-255] |
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timbak
Joined: 18 Oct 2018
Posts: 8
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| Posted: Mon Jan 18, 2021 12:39 pm Post subject: |
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O-Family thank You for quick response. Now it works!
I use 0.66" 64x48 display, and have some offset in coordinates, and this is different in rotation modes
my code:
| Code: | Config Graphlcd = Custom , Cols = 64 , Rows = 48 , Lcdname = "SSD1306"
Cls
Const Ssd1306_rotate = 1
Setfont Font8x8tt
Glcdcmd &HA7
Lcdat 1 , 33 , "1234567#1"
Lcdat 2 , 33 , "1234567#2"
Lcdat 3 , 33 , "1234567#3"
Lcdat 4 , 33 , "1234567#4"
Lcdat 5 , 33 , "1234567#5"
Lcdat 6 , 33 , "1234567#6" |
it need set second coordinate to 33 for correct string drawing
this is what i get when Ssd1306_rotate is changed:
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O-Family
Joined: 23 May 2010
Posts: 320
Location: Japan
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| Posted: Tue Jan 19, 2021 3:02 am Post subject: |
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SSD1306 is a 128x64 Dot controller and I think your OLED has different address pin connections.
I don't have this OLED so I'm not sure if it works, but try this library. |
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timbak
Joined: 18 Oct 2018
Posts: 8
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| Posted: Tue Jan 19, 2021 10:06 am Post subject: |
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| O-Family wrote: | SSD1306 is a 128x64 Dot controller and I think your OLED has different address pin connections.
I don't have this OLED so I'm not sure if it works, but try this library. |
O-Family, it works perfect! Thank You so much for the fiix |
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