How can I solve this? So I would imagine you could pull data from pi-hole if you wanted to. The display just runs on a simple Python script, so you can quite easily add additional information or remove unwanted information from what is displayed. Thanks for explaining that. Thats great. >>>>>AT THIS POINT I COPIED TGE REPLACEMENT stats.py OVER via WinSCP<<<<<< We can play around with the spacing, but this font is just not great for this stats layout. Ive just resolved it by running pip3 install Adafruit-BBIO just a guess. but when I updated raspbian, there is no longer anything shown on the display by default. The following libraries may already be installed but run these commands anyway to make sure : If you are using Python 2 then use these commands instead : I would recommend using Python 3 unless you have a really good reason for using Python 2. Hi Pascal, I am in the process of assembling a webserver to a rural school. Once I installed the following two packages worked perfectly. Comment out the line which loads the default font: Uncomment the line which loads the replacement font and paste your filename into it, keeping the inverted commas on either side. I am noob here. import os draw.text((x, top), "IP: " + str(wifiip), font=font, fill=255) draw.text((x, top+10), "CPU Load: " + str(CPU_LOAD) + "%" , font=font, fill=255) draw.text((x, top+20), "Disk: " + str(usedgb) + "/" +str(totalgb) + " " + str(diskused)+ "%" , font=font, fill=255) draw.text((x, top+30), "CPU freq: " + str(CPU_freq), font=font, fill=255) draw.text((x, top+40), "Mem: " + str(usedmem)+ "/"+ str(totalmem), font=font, fill=255). Using an I2C OLED Display Module with the Raspberry Pi, CrowPi L Raspberry Pi Laptop and Learning Platform, Enable the I2C Interface on the Raspberry Pi, https://github.com/adafruit/Adafruit_Python_SSD1306/issues/22, Analogue Sensors On The Raspberry Pi Using An MCP3008, Copy to your Pi in the same location as your Python script, Update the Python script to use your new file. draw.text((x, top), IP: + str(IP), font=font, fill=255) Im new to the world of R-PI and was extremely excited when cases arrived today. Go back and re-check your connections to your Pi and display and re-check that youve got I2C communication enabled after a reboot. Did you get SDA and SCL mixed up? Probably you are running it form a sub directory in your home folder and not your home folder itself. Hello! I have no idea where it comes from. You can do this within the raspi-config tool on the command line by running: The following libraries may already be installed but run these commands anyway to make sure : To find a list of the devices connected to the I2C bus on the Raspberry Pi you can use the following command: On the older Raspberry Pi type the following command: Here is the output I see on my Raspberry Pi 4 Model B: 00: -- -- -- -- -- -- -- -- -- -- -- -- --, 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --, 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --, 30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- --, 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --, 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --, 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --. File /home/pi/.local/lib/python3.7/site-packages/PIL/ImageFont.py, line 853, in truetype One note though, pip3 isnt always installed, so I suggest adding the sudo apt install python3-pip command before entering the sudo pip3 command. You can make your own Raspberry Pi Desktop case by following my build guide, or buy a premade kit from my Etsy store. disp.image(image) If your table is returned blank then youve either got a wiring issue or I2C communication isnt turned on. I am having a trouble! sudo apt-get install python3 Youll then need to copy the filename of your font, along with the extension, to put into the script. with archive_context(archive_filename): Ive got an OLED display that displays in blue/yellow its also based on the 1306. It just means that they have developed a better or more recent set of libraries. There is a note on the Github page to say that this is a depreciated library, but that doesnt mean that you cant use it or that it will no longer work. I just received my case a few days ago and have everything set up now. i2c iic ssd1306 This has been a really helpful tutorial. File /home/pi/Adafruit_Python_SSD1306/examples/stats.py, line 103, in If you are displaying multiple images per second it is worth increasing the bus speed of the interface as it can improve performance. cd Adafruit_python_SSD1306/ I prefer creating pbm files as they are black and white and much smaller files. Open crontab by typing the following command into your terminal: If this is the first time youre opening crontab then select 1 as your editor and hit enter. Here are some thing to consider : These screens are available from a number of retailers so take a look and pick one that is convenient for your location : Read the descriptions carefully as some OLEDdisplay modules use the SPI interface rather than I2C. But we want it to run all the time and run on startup, so theres one last thing to do. It showed the device had been detected with an address of 0x3c. If your screen isnt working you should start at the beginning of this tutorial and work through it. import os This would set up a new interface at /dev/i2c-3. Also needed `setuptools`, Image/PIL/pillow (?! https://github.com/adafruit/Adafruit_Python_SSD13 Arduino Robotic Arm Controlled by Touch Interface. **** NOW DO THIS BIT *** See https://circuitdigest.com/microcontroller-projects/ssd1306-oled-display-with-raspberry-pi as a great example of a tutorial. Unofficial site devoted to the Raspberry Pi credit card sized computer offering tutorials, guides, resources,scripts and downloads. In crontab after I try to exit it says File name to write: /tmp/crontab.LfxgzD/crontab and it gives me a bunch of options but you never said which one to do. I'm sure it has something to do with me not understanding the '$NF==' stuff, any tips would be appreciated! os.chdir(/home/pi/Adafruit_Python_SSD1306/examples). sudo python 3 setup.py install return self.gen.next() oled spi iic 5v 3v Share it with us! Then again, I read something about a BUS and that I could control different interfaces with sam pins ughhh. Its likely that one of the earlier steps (like sudo python3 setup.py install or sudo python -m pip install upgrade pip setuptools wheel) didnt complete properly. They are available in various sizes but common sizes include 12832 and 12864 pixels. git clone http://github.com/Adafruit/Adafruit_python_SSD1306.git Before detecting the OLED, when I run the following in cmd: It returns a serial number (28-xxxx). Is it possible to add the name of the server alone with the status to display? Regarding my last post, about a problem connecting with i2c to the display I found that one of my breadboard wires was not conducting. File /usr/lib/python2.7/zipfile.py, line 770, in __init__ Would the script have to change at all? We had the screen working great on RPI OS. Python3 stats.py I get the same error. Which paramtere did you use in Cura to create these support fillings.? same for IP? This project is shared under the Creative Commons License: The best resource for tech and electronics projects, tutorials and reviews. But if i compare it to the RaspiOS Buster panel usage monoitor it should give you arround 4 7% in idle. Resizing and converting takes extra processing time so in high performance applications you are better feeding the script images that have already been resized. Works great! 
Run each one of these commands individually in your terminal: Once youve done that then you can check that your Pi is able to see that your display is connected. Yes, I would expect that you should be getting at least 4-5% when idle. The section in the script should now look like this : This step becomes essential if you want to start creating your own images to display on the screen. I have one OLED running stats.py fine, and would like to add a second OLED with another script running, like shapes.py or animate.py. The behaviour of the screen is probably because the script is running in the background already on startup and you are then running it a second time in your IDE. 
Next, we need to connect the communication jumpers SCL and SDA, which just get plugged into the corresponding GPIO pins. Well start by hooking the display up to the Raspberry Pi. We hope to help everyone get the most out of their Pi by providing clear, simple articles on configuring, programming and operating it. See below. When trying python3 stats.py I get: It asks you whether youd like to save the file and you just need to enter Y or y for yes. And I really appreciate that you made a new Video and new Post about it because I had trouble to get the font displayed correctly. If you now run the script youll see that the text is a bit taller and is in your new font, but its still bunched up at the top of the display. RPiOS Bullseye. Question This is far and away the most concise and well explained tutorial I have read about displaying your own images. You may already have them installed, but its worth checking. Like a mounted USB disk? So the display is receiving two sets of commands from two different scripts, thats why it looks like it is going crazy. One thing that happened to me is that as soon as I changed my font to the PixelOperator one, my cronjob isnt working anymore. Matt- The reason why the PCB said 0x78 and youre reading 0x3C from i2c-tools is: I2c-tools shifts the entire address to the left by 1 (adding the last bit for R/W). Last year Seeed Studios launched the reTerminal, a Raspberry Pi Compute Module 4 based touch display terminal with a pretty good list of features. A while ago I did a bit of an experiment to compare the sound level between TMC2208 and A4988 stepper motor drivers. About: I am a hardcore robotics and IoT enthusiast. I prefer using GIMP because it is free. I have never tried to do so, but you can set the script to display any metrics that are made available by other applications. My device has white pixels and uses an I2C interface which only requires four wires to be connected to the Pi. As a noob to Raspberry Pis I am still learning about programming and how to use the Pi. return _do_download(version, download_base, to_dir, download_delay) I am in same boat. I would like to ask you if I am allowed to post that remix over at thingiverse. I think you have to install more libraries if using Raspbian Lite. Check all of your connections again and youre then ready to power your Pi up and get started with programming the display. Ive got no idea why the device PCB suggests the address is 0x78 when it is clearly 0x3c. draw.text((x, top+25), str(Disk), font=font, fill=255), # Display image. raise BadZipfile, File is not a zip file use_setuptools() font, size, index, encoding, layout_engine=layout_engine oled amoled Were not so much interested in the library as we are in the stats example script, so were going to use it anyway.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'the_diy_life_com-large-leaderboard-2','ezslot_14',176,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-the_diy_life_com-large-leaderboard-2-0')}; Download the script by typing in the following commands: Next, navigate to your librarys directory: Then run the setup script to install the library. Quick question, Is there a way to display temp in Farenheit and not celsius? To get the display to show our Raspberry Pis performance stats, were going to be running a Python script. Update: For those running Raspberry Pi OS Bullseye, please use my revised guide. Have you built it into your own case? Look for the standard pixel operator font and copy the font into the same directory as your stats script. on Introduction. Before we do this we need to enable I2C communication on the Pi as this is how it communicates with the display. After buying the kit from you I am amazed. I am assuming that with i2c_gpio_sda=5 and i2c_gpio_scl=6 pins 5 and 6 are meant, I would change these to lets say 19 and 21? Have a look at the video at the begining if youre unsure about which lines to replace or change. (DS18b20 connects to BCM 4 using the One-Wire (w1) protocol). ni.ifaddresses('eth0')wifiip = ni.ifaddresses('eth0')[ni.AF_INET][0]['addr']while True: #Get disk usage dict(psutil.disk_usage('/')._asdict()) totalgb = int(psutil.disk_usage('/').total / 1000000000) usedgb = int(psutil.disk_usage('/').used / 1000000000) diskused = psutil.disk_usage('/').percent #Get memory usage dict(psutil.virtual_memory()._asdict()) totalmem = int((psutil.virtual_memory().total / 1000000)) usedmem = int((psutil.virtual_memory().available / 1000000)) dict(psutil.cpu_freq()._asdict()) CPU_LOAD = psutil.cpu_percent(interval=0.0, percpu=False) CPU_freq = int(psutil.cpu_freq().current) # Draw a black filled box to clear the image. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'the_diy_life_com-medrectangle-4','ezslot_10',174,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-the_diy_life_com-medrectangle-4-0')}; These displays dont have reverse polarity protection, so if you connect them incorrectly (even just once) then its quite likely that theyll be damaged and will no longer work, even if you correct the wiring afterward. You can do this within the raspi-config tool on the command line by running : For additional details on this step please see my how toEnable the I2C Interface on the Raspberry Pi post. However if i run python3 stats.py directly from the examples folder it works.. You dont want to short a connection or plug a lead into the incorrect pin by mistake and not have a chance to check your connection before powering it up. There seems to be an issue with a missing file. I havent seen those packages come up previously, what operating system/version are you running? To install the library we will clone the Adafruit git repository. Hi, my name is Michael and I started this blog in 2016 to share my DIY journey with you. Make sure that your Pi is off and the power is disconnected before plugging or unplugging jumpers from the GPIO pins. Consider being a bit more detailed and assume that those reading do not have the same initial conditions that you do. But when I run the stats.py, I get the variables preceded by a b and followed by \n. hi Michael, File /home/pi/.local/lib/python3.7/site-packages/PIL/ImageFont.py, line 850, in freetype The Adafruit examples assume you have a 12832 screen. RuntimeError: Could not determine platform. Thanks for the tip Arik, Copyright 2022 - All Rights Reserved - Matt Hawkins. I seem to remember making some changes to the list of package installs due to a change in the PIL package. Copy these two portions of the script below and paste them into your script on your Pi. self._RealGetContents() However Ive never tried this myself. Thanks for the update Pascal, happy to hear youve managed to get it working correctly. There is more information available through the link provided above this section https://unix.stackexchange.com/questions/119126/command-to-display-memory-usage-disk-usage-and-cpu-load. Open up the examples folder in the Adafruit library which you were working on in the previous step and use the Thonny Python IDE to open up the stats script so that you can edit it. https://github.com/adafruit/Adafruit_Python_SSD1306/issues/22. I wanted to know how to display 2 Pages with different informations in first. 1 year ago, I m having this problem: please someone help me:OSError: [Errno 121] Remote I/O errorMy i2cdetect -y 0 output:0 1 2 3 4 5 6 7 8 9 a b c d e f00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- --, Hi there, thank you for this.I wanted to add another line showing disk space on my mounted USB.
Run each one of these commands individually in your terminal: Once youve done that then you can check that your Pi is able to see that your display is connected. Yes, I would expect that you should be getting at least 4-5% when idle. The section in the script should now look like this : This step becomes essential if you want to start creating your own images to display on the screen. I have one OLED running stats.py fine, and would like to add a second OLED with another script running, like shapes.py or animate.py. The behaviour of the screen is probably because the script is running in the background already on startup and you are then running it a second time in your IDE. Next, we need to connect the communication jumpers SCL and SDA, which just get plugged into the corresponding GPIO pins. Well start by hooking the display up to the Raspberry Pi. We hope to help everyone get the most out of their Pi by providing clear, simple articles on configuring, programming and operating it. See below. When trying python3 stats.py I get: It asks you whether youd like to save the file and you just need to enter Y or y for yes. And I really appreciate that you made a new Video and new Post about it because I had trouble to get the font displayed correctly. If you now run the script youll see that the text is a bit taller and is in your new font, but its still bunched up at the top of the display. RPiOS Bullseye. Question This is far and away the most concise and well explained tutorial I have read about displaying your own images. You may already have them installed, but its worth checking. Like a mounted USB disk? So the display is receiving two sets of commands from two different scripts, thats why it looks like it is going crazy. One thing that happened to me is that as soon as I changed my font to the PixelOperator one, my cronjob isnt working anymore. Matt- The reason why the PCB said 0x78 and youre reading 0x3C from i2c-tools is: I2c-tools shifts the entire address to the left by 1 (adding the last bit for R/W). Last year Seeed Studios launched the reTerminal, a Raspberry Pi Compute Module 4 based touch display terminal with a pretty good list of features. A while ago I did a bit of an experiment to compare the sound level between TMC2208 and A4988 stepper motor drivers. About: I am a hardcore robotics and IoT enthusiast. I prefer using GIMP because it is free. I have never tried to do so, but you can set the script to display any metrics that are made available by other applications. My device has white pixels and uses an I2C interface which only requires four wires to be connected to the Pi. As a noob to Raspberry Pis I am still learning about programming and how to use the Pi. return _do_download(version, download_base, to_dir, download_delay) I am in same boat. I would like to ask you if I am allowed to post that remix over at thingiverse. I think you have to install more libraries if using Raspbian Lite. Check all of your connections again and youre then ready to power your Pi up and get started with programming the display. Ive got no idea why the device PCB suggests the address is 0x78 when it is clearly 0x3c. draw.text((x, top+25), str(Disk), font=font, fill=255), # Display image. raise BadZipfile, File is not a zip file use_setuptools() font, size, index, encoding, layout_engine=layout_engine oled amoled Were not so much interested in the library as we are in the stats example script, so were going to use it anyway.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'the_diy_life_com-large-leaderboard-2','ezslot_14',176,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-the_diy_life_com-large-leaderboard-2-0')}; Download the script by typing in the following commands: Next, navigate to your librarys directory: Then run the setup script to install the library. Quick question, Is there a way to display temp in Farenheit and not celsius? To get the display to show our Raspberry Pis performance stats, were going to be running a Python script. Update: For those running Raspberry Pi OS Bullseye, please use my revised guide. Have you built it into your own case? Look for the standard pixel operator font and copy the font into the same directory as your stats script. on Introduction. Before we do this we need to enable I2C communication on the Pi as this is how it communicates with the display. After buying the kit from you I am amazed. I am assuming that with i2c_gpio_sda=5 and i2c_gpio_scl=6 pins 5 and 6 are meant, I would change these to lets say 19 and 21? Have a look at the video at the begining if youre unsure about which lines to replace or change. (DS18b20 connects to BCM 4 using the One-Wire (w1) protocol). ni.ifaddresses('eth0')wifiip = ni.ifaddresses('eth0')[ni.AF_INET][0]['addr']while True: #Get disk usage dict(psutil.disk_usage('/')._asdict()) totalgb = int(psutil.disk_usage('/').total / 1000000000) usedgb = int(psutil.disk_usage('/').used / 1000000000) diskused = psutil.disk_usage('/').percent #Get memory usage dict(psutil.virtual_memory()._asdict()) totalmem = int((psutil.virtual_memory().total / 1000000)) usedmem = int((psutil.virtual_memory().available / 1000000)) dict(psutil.cpu_freq()._asdict()) CPU_LOAD = psutil.cpu_percent(interval=0.0, percpu=False) CPU_freq = int(psutil.cpu_freq().current) # Draw a black filled box to clear the image. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'the_diy_life_com-medrectangle-4','ezslot_10',174,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-the_diy_life_com-medrectangle-4-0')}; These displays dont have reverse polarity protection, so if you connect them incorrectly (even just once) then its quite likely that theyll be damaged and will no longer work, even if you correct the wiring afterward. You can do this within the raspi-config tool on the command line by running : For additional details on this step please see my how toEnable the I2C Interface on the Raspberry Pi post. However if i run python3 stats.py directly from the examples folder it works.. You dont want to short a connection or plug a lead into the incorrect pin by mistake and not have a chance to check your connection before powering it up. There seems to be an issue with a missing file. I havent seen those packages come up previously, what operating system/version are you running? To install the library we will clone the Adafruit git repository. Hi, my name is Michael and I started this blog in 2016 to share my DIY journey with you. Make sure that your Pi is off and the power is disconnected before plugging or unplugging jumpers from the GPIO pins. Consider being a bit more detailed and assume that those reading do not have the same initial conditions that you do. But when I run the stats.py, I get the variables preceded by a b and followed by \n. hi Michael, File /home/pi/.local/lib/python3.7/site-packages/PIL/ImageFont.py, line 850, in freetype The Adafruit examples assume you have a 12832 screen. RuntimeError: Could not determine platform. Thanks for the tip Arik, Copyright 2022 - All Rights Reserved - Matt Hawkins. I seem to remember making some changes to the list of package installs due to a change in the PIL package. Copy these two portions of the script below and paste them into your script on your Pi. self._RealGetContents() However Ive never tried this myself. Thanks for the update Pascal, happy to hear youve managed to get it working correctly. There is more information available through the link provided above this section https://unix.stackexchange.com/questions/119126/command-to-display-memory-usage-disk-usage-and-cpu-load. Open up the examples folder in the Adafruit library which you were working on in the previous step and use the Thonny Python IDE to open up the stats script so that you can edit it. https://github.com/adafruit/Adafruit_Python_SSD1306/issues/22. I wanted to know how to display 2 Pages with different informations in first. 1 year ago, I m having this problem: please someone help me:OSError: [Errno 121] Remote I/O errorMy i2cdetect -y 0 output:0 1 2 3 4 5 6 7 8 9 a b c d e f00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- --, Hi there, thank you for this.I wanted to add another line showing disk space on my mounted USB.
