I have Ubuntu Server running for Raspberry 4 pi and wanted to use the LCD display from your product. I was wondering if there is a way to get this running without going to Raspberry OS. I plan on using it in my home lab for Kubernetes and other. thanks

okay I installed raspberry os on another card and tried getting this to work but getting the following error. I did enable the interface option.

> andy@raspberrypi:~/git/U6143_ssd1306-master $ sudo python3 ssd1306_stats.py
> Traceback (most recent call last):
>   File "ssd1306_stats.py", line 18, in <module>
>     i2c = busio.I2C(SCL, SDA)
>   File "/usr/local/lib/python3.7/dist-packages/busio.py", line 31, in __init__
>     self.init(scl, sda, frequency)
>   File "/usr/local/lib/python3.7/dist-packages/busio.py", line 72, in init
>     (scl, sda), i2cPorts
> ValueError: No Hardware I2C on (scl,sda)=(3, 2)
> Valid I2C ports: ((1, 3, 2), (0, 1, 0))
> andy@raspberrypi:~/git/U6143_ssd1306-master $ 
> 

Is there any way to create a script to make the power button perform a soft shutdown instead of an immediate halt?

Does anyone know of a way to get the LED display to work on a non-Raspbian OS? I have 2 Pi4's with the aarch64 version of Fedora 35, booting from a 128GB USB stick. The instructions in the README don't seem to work for non-Raspbian OS's.

The display shows MEM but always 0. I have the pi4 8GB.

Power button does not disconnect power. Button stays red. I do note the small LED on the top of the hat changes from on / off with the pressing of the button. I have swapped buttons, cables, and hats and all are the same. Button does not disconnect power.

I don't know C very well but have enough scripting experience to see what is basically happening.

I have multiple disks. I just copied the sd card diskspace function in ssd1306_i2c.c,
I renamed it LCD_DisplayVarMemory, and changed the target to /var.

/VAR Drive Block Of Code

void LCD_DisplayVarMemory(void)
{
char usedsize_GB[10]={0};
char totalsize_GB[10]={0};
unsigned int MemSize=0;
unsigned int size=0;
struct statfs diskInfo;
statfs("/var",&diskInfo);
OLED_ClearLint(2,4);
OLED_DrawPartBMP(0,2,128,4,BMP,2);
unsigned long long blocksize = diskInfo.f_bsize;// The number of bytes per block
unsigned long long totalsize = blocksize*diskInfo.f_blocks;//Total number of bytes
MemSize=(unsigned int)(totalsize>>30);
snprintf(totalsize_GB,7,"%d",MemSize);
if(MemSize>0&&MemSize<10)
{
OLED_ShowString(106,3,totalsize_GB,8);
}
else if(MemSize>=10&&MemSize<100)
{
OLED_ShowString(98,3,totalsize_GB,8);
}
else
{
OLED_ShowString(90,3,totalsize_GB,8);
}

unsigned long long freesize = blocksize*diskInfo.f_bfree; //Now let's figure out how much space we have left
size=freesize>>30;
size=MemSize-size;
snprintf(usedsize_GB,7,"%d",size);
if(size>0&&size<10)
{
OLED_ShowString(65,3,usedsize_GB,8);
}
else if(size>=10&&size<100)
{
OLED_ShowString(58,3,usedsize_GB,8);
}
else
{
OLED_ShowString(55,3,usedsize_GB,8);
}
}

I also had to add a few lines to LCD_Display like so:

original code

case 2:
LCD_DisplaySdMemory();
break;

new code added after case 2 break;

case 3:
LCD_DisplayVarMemory();
break;

fixing the rotation to view the new drive info

I also had to change display.c line 29 from if(symbol==3) to if(symbol==4) for the new drive to be used in the rotation. Adding a third drive (or anything else) will have to change it to ==5

It seems to work fine, my only issue is the label for it.
The label shows a little card and says "disk"

I would like to change the label from "disk" to "var" for the var drive and I also have another drive to add that holds backups and would like that one to have the label set to "backups" or even just "BACK' or something.

For the life of me I cannot find where to set this label.
Any help with icons and labels by chance?

Anything I may have missed?

I noticed in ssd1306_i2c.h on line 36 there is "void LCD_DisplaySdMemory(void);"
Do I need to do the same for my extra drives/info? "void LCD_DisplayVarMemory(void);"

Other things I would like to add (any help would be greatly appreciated)

add hostname into the rotation
add the ubuntu release version
add kernel version
add number of packages needed updating/upgrading from apt

Thanks a bunch!

Hello - I've got one Raspberry Pi installed and I'm not getting power to the OLED display. Everything else is working nicely. I've tried two of the supplied cables.

I've not yet tried moving the pi to another slot since I had to do a bit of finessing to get it into the one it's in.

Any further suggestions for troubleshooting?

program is not picking up my disk usage, its on 2 different pis, any ideas?

My IP address is displaying 170.170.0.0 instead of 192.168.1.# for each of my nodes. I have 4 nodes and they are all displaying the same IP address of 170.170.0.0.

Running Ubuntu 20.04.2 for Raspberry PI and using robiwisc fork "C_HostName_IP"

As reported before with Ubuntu install. I took the Pi and did a clean install of the lastest Raspian and got the same error message:

ssd1306_i2c.c:7:10: fatal error: wiringPiI2C.h: No such file or directory #include <wiringPiI2C.h> ^~~~~~~~~~~~~~~ compilation terminated. make: *** [<builtin>: ssd1306_i2c.o] Error 1

Does anyone know how the unsigned chars in the BMP.h file are coded/have a table of values? I'm trying to add additional arrays for different views.

The IP on the screen shows as 85.0.0.0

I am using dietpi on raspberry pi 4 B

After getting raspi-config installed and I2C interface enabled and verify. I was following the instructions and during the make process I received the following:

ssd1306_i2c.c:7:10: fatal error: wiringPiI2C.h: No such file or directory 7 | #include <wiringPiI2C.h> | ^~~~~~~~~~~~~~~ compilation terminated. make: *** [<builtin>: ssd1306_i2c.o] Error 1

Should wiringPiI2C.h be part of the code or do I need to add to the directory?

When the Pi is connected via Ethernet the IP is displayed as 0.0.0.0.

Is there any way to make an option that we can select what is displayed?

Would like where the IP address is displayed to show a name, (one we can add as we see fit)

then have the IP address in the lower section added to the loop of info displayed.

Is there a way to edit the cron to put the display to sleep at certain times?

This is an example from the PADD project.

# PiTFT+ SLEEPY TIME
# Turn off the PiTFT+ at midnight
00 00 * * * sh -c 'echo "0" > /sys/class/backlight/soc\:backlight/brightness'
# Turn on the PiTFT+ at 8:00 am
00 08 * * * sh -c 'echo "1" > /sys/class/backlight/soc\:backlight/brightness'

is there any way I can use this on the operating system dietpi? I have turned I2C on and it gives me this error:

rm -rf *.o
rm -rf display
cc    -c -o display.o display.c
cc    -c -o ssd1306_i2c.o ssd1306_i2c.c
ssd1306_i2c.c:7:10: fatal error: wiringPiI2C.h: No such file or directory
 #include <wiringPiI2C.h>
          ^~~~~~~~~~~~~~~
compilation terminated.
make: *** [<builtin>: ssd1306_i2c.o] Error 1

How do I change the Temp display from Fahrenheit to Celsius, and is it possible to slow down the rate at which it changes between the different info displays. You barely get time to loot a reading and it switches.

The script doesn't start automatically on Ubuntu server 22.04 after reboot.