Yes. There are Micropython and Circuitpython libraries for the INA219 that are compatible with the Pico. There's a Micropython example using the INA219 in my vegetable garden automation video: kzbin.info/www/bejne/rmOUaoVrp9-Fqrcsi=_hZyaAXItKh97UGn

Unfortunately, it looks like the latest channel is not supported. Please check with the Rocket Chat forum forums.rocket.chat for updated information. The latest version that currently works is 4.x/stable. To install Rocket Chat Server 4.x, simply use the following command: *sudo snap install rocketchat-server --channel=4.x/stable*

The pi used in the video is pi 1 b+ circa 2014. The wiring and code should work for any pi single-board computer. However, the Adafruit library has been deprecated so I recommend the newer Adafruit CircuitPython CharLCD library. There is an updated example on my website: www.rototron.info/lcd-display-tutorial-for-raspberry-pi/#cp

According to Adafruit's website: "CircuitPython libraries and adafruit-blinka will work on any Raspberry Pi board! That means the original 1, the Pi 2, Pi 3, Pi 4, Pi 5, Pi Zero, Pi Zero 2 W, or even the compute modules."

​@@rdagger Awesome! I'm about to solder on the headers and set up the wiring so I'll see if it works, fingers crossed. Also, its really cool that your still responding to comments on a nine year old video. It's really helpful because between the new and outdated information, it's really hard to find clear instructions and information as someone who is just starting off with this type of thing.

The wiring should be the same. You’ll probably need to connect both AGND and DGND to ground and Vdd and Vref to 3.3V. You need an ADC (Analog-to-Digital Converter) instead of a DAC (Digital-to-Analog Converter). The MCP3008 is an ADC and should work depending on your required resolution. The video is 8 years old. Looking back at the write-up on my website, I did encounter some incompatibility when I tried to use the Adafruit MCP3008 driver with the MCP3002. That is why I used direct register manipulation instead of a driver. The code I used in the video might work with an MCP3008 or you could just use the latest Adafruit CircuitPython driver: github.com/adafruit/Adafruit_CircuitPython_MCP3xxx/ I still make videos but they are more projects oriented as opposed to component tutorials. Still, I usually explain the wiring and coding for each component. I also lean toward MCUs like the ESP32, the Teensy, and the Raspberry Pi Pico over SBCs like the Raspberry Pi. I might make more tutorials in the future when I come across interesting components. Adafruit has many great tutorials: learn.adafruit.com/

@@rdagger Oh boy this is all good info thanks for your response. I was actually debating on using Raspberry Pi Pico instead since my SBC is overkill. I'll also check out Adafruit. Best wishes! You should write a book on how to use every component because your information and style are second to none.

python img2rgb565.py <your_image> <your_image> is the full path to the image file you want to convert

i just keep getting this error C:\Windows\System32>python img2rgb565.py <C:\Users\ppap\AppData\Local\Programs\P ython\Python38\Scripts\honda_colour.jpg> The syntax of the command is incorrect. C:\Windows\System32>

@@philoffhistree6700 Angle brackets < > are commonly used to indicate a placeholder, which means that you need to replace the text inside the brackets with the actual value, without including the brackets themselves: python img2rgb565.py C:\Users\ppap\AppData\Local\Programs\P ython\Python38\Scripts\honda_colour.jpg Also, when you post to KZbin, don't ever include country code top-level domains (ccTLDs) such as .cn, .ru, .kp or .py in your comment because KZbin will automatically place a hold on it.

I installed all the libraries but nothing is showing

Did you enable I2C using raspi-config? Did you verify the address using i2cdetect?

@@rdagger Thanks for the quick response time! I enabled I2C via the Raspberry Pi Configuration menu and i wouldn't get any detection using i2cdetect. I made sure i connect the pins to the proper gpio pins and everything.

@@rdagger Could there be an issue if the wirelength of the wires I used to connect the pins is a bit long? The wires about a foot long.

@@stonkyboy7606 1 foot is within spec but I would test the wires with a meter and try swapping them out. What Pi are you using? You could have a bad INA219.

Don’t connect an LCD. Omit the LCD code. Replace all calls to lcd.message() with print(). A resistor is not necessary.

I added updated instructions to my website: www.rototron.info/raspberry-pi-spectrum-analyzer/#CP

@@rdagger Wow, that's amazing. I was just thinking I bit off more than I can chew on this project. I had the LED Controller working with 4 test LEDs but I was never going to figure out the virtual environment. Wonder if I'll be able to handle turning turning this into a note detector.

@@rdagger Should the microphone section of the code be working as you originally described it or did I do something wrong trying to switch from the wav file to microphone?

@@paulandrusyszyn9177 I uploaded updated microphone code to my website.

@@rdagger Am I allowed to leave messages with links? I thought I left a comment yesterday on reducing the errors in AudioPy and I needed some help with Numpy.

Depending on which model you have, you should be able to login to it using a web browser and the IP address of the unit. The default credentials should be admin, 1234 or admin wattbox. You should be able to reset the unit to factory default by pressing the reset button on the back with a paper clip. You may have to hold it for several seconds. You should be able to download the manual for model from the vendor: www.snapav.com

@@rdagger Thanks for the information. I have a model WB-600-FP which, I believe, is the same one that you repaired in your video. The stated IP in inaccessible using either a ping or in a browser. Several of the outputs are active and I'm reluctant to reset it and maybe lose those outputs. I have the original CD rom disk which loads but does not allow the firmware upgrade. I suspect that since the IP is not viable this path won't work. I suspect it's been in this state for years so maybe a reset will make it responsive. What do you think.

@@witzed1WB-600FP is the optional face plate display module. My wattbox is a model WB-700-IPV-12. Wattboxes are typically only installed by authorized integrators and if they are competent then they would have assigned it a static IP address and changed the default credentials. Is the wattbox plugged into a network? If so, did you set up the network or is it the existing router that came with the wattbox? The MAC address of the wattbox should be on a sticker on the bottom of the unit. You could check the DHCP table of your router to see if it assigned an IP to your wattbox. Since, the wattbox may have a static IP, you can use the command arp -a to scan your network for the mac address assuming the wattbox is on the same subnet. There are also free IP scanning utilities you can download to scan your network (Angry IP Scanner, Advanced IP Scanner, Nmap, Fing, Belarc Advisor). If you can't determine the IP address, then you could try a tool like WireShark to capture network traffic and look for unknown IP addresses. You can always try to contact the previous homeowner and ask them for the IP address and credentials.

You bring up a great point about legacy industrial demand, but I wouldn't attribute the high market prices of vintage ISA motherboards solely to niche business applications. There's a large collectors market in which I participate, and back in the day, people and businesses threw out obsolete equipment, so much of it has ended up in landfills. Also, there are vendors selling brand new legacy-compatible motherboards with ISA slots that support EOL operating systems. Still, I think you might be right that the dominant factor is operational demand.

Any board that supports I2C should be compatible assuming you can get a driver for it.

@@rdagger ya so I got the driver as well as my pcb supports ina219 but the thing is I am not able get the data from it. Would be great if you could guide me 🙏🏻

@@SohanChhangani What board are you using? What driver are you using? What error message are you getting?

@@rdagger custom pcb with cm3566 som

@@SohanChhangani Sorry I don’t have any experience with the CM3566. Generally speaking, I would do the following: 1. Verify your wiring is correct and try to keep the lengths as short as possible. 2. Check with the manufacturer and see if external pull-up resistors are required. 3. Find an Android I2C test utility and see if the address of the INA219 shows up. 4. Find a forum that specializes in Embedded Android Development or Android IOT Development.

Make sure you enable VNC on the Pi using raspi-config. Make sure the Pi has obtained a valid IP address and can ping your router. There isn't really anything else you need to do. I use the free version of RealVNC.

@@rdagger Managed to get the VNC server running, loaded an older version of Pi os. Thanks again for your videos.

I've got the pi up and running but do not have a solar controller hooked up yet. I get an error message when I try and use the curl command. Would the lack of data cause an error you think?

@@timerskine249 what is the error message?

@@rdagger I actually had to go in and correct a few commands in the tracer __init__.py file as some of the print commands were not recognized and a few tabs were not recognized either. Now when I run the curl function after I getting the "Running on 127.0.0.2:5000/ message, I get an error from the __init__.py file as the solar_test file calls it. The error is: File "/home/pi/tracer/python/tracer/__init__.py", line 131, in receive_result if not b >= 0: TypeError: '>=' not supported between instances of 'bytearray' and 'int'. When I did a print(b) just before the comparison it comes back as " bytearray(b ' ')" Appreciate you dragging this newbie along. I sure have learned a lot trying out this project.

There have been a lot of changes since this video was released in 2014. I have updated code on my website. Please see example: www.rototron.info/lcd-display-tutorial-for-raspberry-pi#cp In the example you would just change lcd_rows = 2 to lcd_rows = 4

Thanks alot.the lcd dasn't show me the text just triangle .and i don't use potentiomètre.what can i do ?the code tell me

@@ImenGhrairi what is the model of your display?

Lcd 1604A

@@ImenGhrairi Is the display chip an HD44780, ST7066 or KS0066? What localization settings is your Raspberry Pi using (language, keyboard layout)? What happens if you try: lcd.message = chr(65)

There's a USB Wi-Fi dongle plugged into the Pi. You can see the dongle at 3:53 in the video.

@@rdagger Thanks for the super quick reply!

Back in 2018, I was primarily using basic drawing tools like Gimp and Inkscape for creating graphics for my tutorials. There are better solutions geared toward circuit design such as Fritzing and Tinkercad. fritzing.org/ www.tinkercad.com/ For the actual design of circuit boards, I usually use the free version of Autodesk Eagle. There are probably better EDA tools, but I've been using Eagle for a long time.

The 2.42-inch (6.15 cm) display isn't that small, and the OLED is very legible even in bright conditions. My eyesight is poor, and I don't have any trouble reading it. If you want bigger, I made a video using a 5.5-inch (14 cm) OLED display: kzbin.info/www/bejne/rJnInWmfe7lnqposi=p4rfeTTDg04Z2GYw

Yes, there's an example on my website showing 6 digits. However, it would be easier to get an inexpensive I2C driver chip such as the HTK1633 which I demonstrated in this video: kzbin.info/www/bejne/enaWnnWqhtGjr8ksi=kF7gaLZ949GrBtwv You can buy 4-digit 7-segment LED displays with built-in HTK1633 controllers. I used a DIY one in my brushless DC motor tutorial: kzbin.info/www/bejne/mKPCialvjZyMkMUsi=55RX9EnzMlBkpjhp and the plans are on my website: www.rototron.info/raspberry-pi-esc-motor-tutorial/

I'm not sure I understand your question. It has been a long time since I used this library, but you should be able to set the direction using pi.write(DIR, 0) or pi.write(DIR, 1).

@@rdagger Thanks a lot, I have solved my problem .