New Adafruit generic OLED display driver for Raspberry PI
-
That's an interesting point, I did not tried on a PI V2, I have one at home, I need to test just in case, because the driver relies on old BCM2835 library that may be I need to update for PI V2, worth checking.
Good to know it works with I2C but I understand you prefer SPI, for sure it's so much faster.
-
Hi, Charles. Any progress with testing the library on a PI v2? Is the BCM2836 extremely different than the BCM2835?
-
Thank you for the detailed blog post. I followed your instructions and got 2 problems :
- there is no libi2c available, the only thing similar I've found is libi2c-dev so I installed that;
- I got error messages while trying to "sudo make" within the example folder, here is a photo showing the result.
http://i.imgur.com/MkWvXbC.jpg
Btw I am on a Pi B V2. One strange thing is that when I ran "sudo i2cdetect -y 1" there is nothing on the table. But while I tried to use Adafruit_SSD1306 library, the oled would respond (weirdly).
Thanks
-
the i2c smbus_ is a know problem
you just need to intall again lm-sensors package (even if correctly installed) then all shoud go fine. Something obvious I’d like to understand, but it seems to work.
look below how I resolved it.
root@pi03:~/github/ArduiPi_SSD1306/examples# make g++ -Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s -Wall -lssd1306 ssd1306_demo.cpp -o ssd1306_demo /usr/local/lib/libssd1306.so: undefined reference to `i2c_smbus_write_i2c_block_data' /usr/local/lib/libssd1306.so: undefined reference to `i2c_smbus_write_byte_data' /usr/local/lib/libssd1306.so: undefined reference to `i2c_smbus_write_word_data' collect2: ld returned 1 exit status make: *** [ssd1306_demo] Error 1 root@pi03:~/github/ArduiPi_SSD1306/examples# dpkg --get-selections | grep i2c i2c-tools install libi2c-dev install root@pi03:~/github/ArduiPi_SSD1306/examples# dpkg --get-selections | grep lm lm-sensors install root@pi03:~/github/ArduiPi_SSD1306/examples# apt-get install lm-sensors Reading package lists... Done Building dependency tree Reading state information... Done lm-sensors is already the newest version. The following packages were automatically installed and are no longer required: libblas3gf liblapack3gf Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 14 not upgraded. root@pi03:~/github/ArduiPi_SSD1306/examples# make clean rm -rf ssd1306_demo teleinfo-oled root@pi03:~/github/ArduiPi_SSD1306/examples# cd .. root@pi03:~/github/ArduiPi_SSD1306# make clean rm -rf *.o libssd1306.* /usr/local/lib/libssd1306.* root@pi03:~/github/ArduiPi_SSD1306# make g++ -Wall -fPIC -fno-rtti -Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s -c Adafruit_SSD1306.cpp ./ArduiPi_SSD1306.h:51:21: warning: ‘oled_type_str’ defined but not used [-Wunused-variable] g++ -Wall -fPIC -fno-rtti -Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s -c Adafruit_GFX.cpp ./ArduiPi_SSD1306.h:51:21: warning: ‘oled_type_str’ defined but not used [-Wunused-variable] gcc -Wall -fPIC -Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s -c bcm2835.c g++ -shared -Wl,-soname,libssd1306.so.1 -Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s -o libssd1306.so.1.0 Adafruit_SSD1306.o Adafruit_GFX.o bcm2835.o [Install Library] [Install Headers] root@pi03:~/github/ArduiPi_SSD1306# cd examples/ root@pi03:~/github/ArduiPi_SSD1306/examples# make g++ -Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s -Wall -lssd1306 ssd1306_demo.cpp -o ssd1306_demo g++ -Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s -Wall -lssd1306 teleinfo-oled.cpp -o teleinfo-oled root@pi03:~/github/ArduiPi_SSD1306/examples#For the i2cbus detection, nothing to do with my lib, i2cdetect is a tool distribued with your linux distro.
So to be sure I've just gone on my PI V2 to test
root@pi01(rw):~/ArduiPi_OLED/examples# i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- --root@pi01(rw):~/ArduiPi_OLED/examples# ./oled_demo -o 3 x: 9y: 0dy: 3 x: 30y: 0dy: 2 x: 111y: 0dy: 2 x: 81y: 0dy: 4 x: 41y: 0dy: 2 x: 85y: 0dy: 5So @Mr_Tom yes it works on Pi V2 (at least in I2C mode) but should be the same for SPI; look below
-
I've got the lm-sensors module in there, and the make on examples worked.
But only still I can't get my Pi to recognize my oled screen, and I have another device on the i2c bus which works perfectly.
I just ordered another oled (a seeed 96*96) to see if that would work.Thank you for your detailed reply!
-
Meng,
Even if Seeed OLED will be seen, it won't work because it"s another driver in it (SSD1308) and I didn't port this one in the example code, something I wanted to do but never had time do do it.
By the way Seeed OLED 96x96 is the best OLED I ever saw, excellent display and gray level.
-
Meng
did you tried your non working OLED on an Arduino with I2CScan sketch just to see ? -
Hi, Charles,
I've tested my oled with I2CScan, and it wasn't detected... maybe a broken one. And I have another oled screen here which can be detected on Arduino, but not on Pi.
Here is a library by Seeed themselves : https://github.com/DexterInd/GrovePi/tree/master/Software/Python/grove_oled
I'll see if that would work once the oled screen arrives. Happy to know that it looks amazing. -
Meng,
yeah Seeed library works fine on Arduino, but not sure there is a port on Raspberry Pi -
This 96*96 oled screen is detected by my Pi and it is working with Seeed's own library, and it would also put out stuff while running your oled_demo.
Does your library has a manual? It doesn't looks like python when I peek into your library files... Sorry I am quite a beginner. Thank you.
I use my Pi to generate sound, and if I do oled operations within the same piece of .py file that does sound, any oled writing operations would block the sound. But if I open 2 terminal instances (I am using SSH), and run sound code on one, oled code on another, it wouldn't block the sound. So it is certainly not a CPU speed issue...
Why does this happen? And if I make my Pi running some python code at boot, how I can make the codes running like within multiple terminals?
Thank you!
-
I also try to run it on RPi2 with an SPI OLED 128x64 and ran into the same problem. The program freezes in display.begin(). What can be wrong?
-
Hi gbona,
Did you checked that your I2C oled is visible with i2cdetect ? If so does his I2C address is 0x3C ? -
Hi Charles. I am trying to use your library to drive a 128x64 SPI OLED display I got from the internet. It is advertised as being SSD1106 (which I assume means SH1106). I have hacked the CS detect line of your code to force it to use SPI instead of the default I2C (this display has no CS pin). I am getting something on the display, but quite garbled.
Here is a video of it running your OLED_demo.
Are these symptoms familiar to you. Any ideas of what might need tweaking.
Many thanks
Graham
-
@boik,
Strange, first time I see SPI oled without CS line, would you mind post a picture of the back ?You're right I forgot to add SPI option for SH1106 in oled_demo.
-
Hi Charles,
[IMG]http://i68.tinypic.com/6zwsjl.jpg[/IMG]
Heres a pic of it running the circle, square, triangle cross demo. Just displays the bottom 8 lines of the image but at the top of the OLED.
[IMG]http://i64.tinypic.com/2mhbn7k.jpg[/IMG]
Not sure if this forum accepts IMG tags?
Graham
-
Hello Charles
I got a freebox server out of ordre.
There is a ssd1327 screen on it.
If i send you the pcb pictures can you help me to find the good pin to plug it to my PI ?
-
@Deennoo
you can post the picture on the forum, may be some other will know, because I'm not sure I will. -
Hi, did you succeed getting the freebox server Oled Display work with a raspberry or Arduino? Did you find any wiring schema, or source code. I would like to reuse the whole SSD1327 and CAP1066 pad of the freebox.
Regards
-
I followed your procedures and up to the part of :
git clone https://github.com/hallard/ArduiPi_OLED
and received the following error message and can't go further :
fatal: could not create work tree dir 'ArduiPi_OLED'.: No space left on device
I am using a 8GB SD card and I think I have enough space - don't I ?
I then issued df -Bm command to check space with following :
Filesystem 1M-blocks Used Available Use% Mounted on
/dev/root 4196M 4087M 0M 100% /
devtmpfs 483M 0M 483M 0% /dev
tmpfs 487M 0M 487M 0% /dev/shm
tmpfs 487M 7M 481M 2% /run
tmpfs 5M 1M 5M 1% /run/lock
tmpfs 487M 0M 487M 0% /sys/fs/cgroup
/dev/mmcblk0p6 63M 20M 44M 31% /boot
tmpfs 98M 0M 98M 0% /run/user/1000Am I running out of memory or what, please advise - thanks
-
I forget to mention that in my SD card - I also have installed a media player OS (OpenElec) in addition to the Raspian OS
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login