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Raspberry Pi

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I bought this cute case for the Raspberry Pi. It's made by Italian company Italtronic, in the UK avalable from CPC. They have cases for different Pis. Mine is for the B+.     Assembly  It's easy. There's no Ikea-style manual though, so you may get it wrong the first time. The only tool required is a screwdriver. The Pi is locked in place with 2 screws (included). Some attention is needed: wait with assembling the black rail mount spring until the box is assembled and close ...
As you know, Raspberry Pi doesn't have native ADC, DAC, CAN Bus controller and other low-level peripherals found in most modern microcontrollers(MCU), such as STM32, Arduino Due, Teensy dev board. Normally this issue is ensured through external modules added to Raspberry Pi board. These are I2C and SPI modules like MCP3008(ADC chip), MCP2515(CAN bus), MCP4725(DAC) and other MCPXXX-like boards. But if you use an MCU for these purposes you have multiple peripherals at the same time. However, th ...
Wood Case for the Raspberry Pi 4. 5V Raspberry Pi Fan from Adafruit. USB SNES Style Game Controller from Element14 Store. ...
********************ISSUE RESOLVED. Credit to shabaz for identifying that a networking device was the issue.  ***********************   I would like the assistance of members that have PoE experience in reviewing my findings to help troubleshoot Ethernet failure under PoE.   I powered up the Pi4B & PoE Hat using a PoE power supply and managed to ssh over the wired Ethernet connection. Satisfied it worked, I command lined "sudo shutdown -h now" so I could teach go teach a cla ...
Frustration, doesn't begin to describe the emotions I'm experiencing. I just received confirmation from Newark Canada that an in stock item that was ordered on the 3 April, has been shipped. I have been waiting for a PoE power supply required to further the The Road to Raspberry Pi4B/ PoE Hat RoadTest Review Raspberry Pi4B (4GB) plus POE Hat .   Let's list the anomalies that may have contributed to my frustration: COVID-19 pandemic social distancing protocol implemented in my country Apr ...
The Raspberry Pi 4 is a great upgrade from the previous Rpi 3. It even performs (surprisingly well) object and facial recognition with the Tensorflow Lite framework (1-2.5 fps) or OpenCV library (1.5 - 8 fps) and PiCamera.   During my first applications of Tensorflow Lite and OpenCV for facial recognition with my Raspberry 4 I realized that long term usage would be quite critical due to temperature issues of the CPU. Without any cooling device (passive/active): Under normal working load t ...
A part order arrived today that provided some additional resources to proceed with the testing.   I ordered PoE power supply on April 3 and the Pi4B power supply on April 15, from Newark Canada, guess which one arrived first? The Pi4B power supplies!   Both items where listed as in stock. The PoE power supply is listed as "In Processing" for order status. The man responsible for managing RoadTests Mr.rscasny  has offered to look into the anomaly. Nothing like a man in high place ...
I had a Squirrel moment, after completing the testing in The Road to Raspberry Pi4B/ PoE Hat RoadTest Review (comparison Pi3B+) . A squirrel moment going off and doing something, that takes you away from your current focus.  I was focusing on developing a load test for PoE and then thought I wonder how the Pi performs with just heat sinks and no fan.   The PoE Hat contains a fan to cool it's switching power supply that converts the incoming 48VDC to the supply voltage needed by the Pi ...
While in a holding pattern, waiting for power supply deliveries for both the PoE and Pi4B, I started some parallel work that was proposed in the RoadTest application. Since the specification indicated the PoE Hat was compatible with the Pi3B+, I figure I could start laying out a RoadTest Review framework using the Pi3B+. When the Pi4B is ready I will run the same tests.   Some observation were discovered while Installing the PoEHat on the Pi3B+. Raised heat sinks on a Pi may conflict for ...
My desire would be to open this post with an Son of a who cut your hair last expletive. My tendency to sprinkle pearls of vulgarity in my posts has given cause for the forum moderator to apply sanctions. I'll settle for the graphic to hopefully pass the review..   The Pi4B and PoE Hat arrived today. That should be reason for joy right, not profanity. Unfortunately, the Pi didn't come complete with a power supply. All my Pi hardware is pre-Pi4. I don't have a Type C power supply required ...
I'm building a SCPI electronics lab instrument for Linux. In this post I'm creating a service wrapper and install the Linux service. It will start at Pi startup, and can be stopped / started as you'd expect from a service.   Prerequisites  You should have built the two binaries for this project, as documented in post 4a and 4b. If you didn't, the binaries are available as archive attached to post 4b. linux_scpi_socket linux_piface_digital_service_cpp These binaries should be ...
I am no stranger to working from home. Having had my first experience of the internet in the late 90's with a dial-up modem, and then in the early 00's with the advent of cable modems in the United Kingdom, it was early on that I jumped into Voice over Internet Protocol (VOIP) and doing internet calls, while gaming on ID Software's Quake 3: Arena and Bioware's Neverwinter Nights using Ventrilo, Skype and Roger Wilco. It is almost second nature to me now, fortunately, that when asked to use softw ...
While I was participating as a team member for element14 to help folding@home analyze coronavirus https://www.element14.com/community/thread/75254/l/set-your-processors-to-analyse-for-the-covid-19-virus-with-foldinghome I wanted to use my rPi4 to help with the effort.  Unfortunately, folding@home does not support the ARM processor, mentioned by cstanton and ninjatrent. They support Windows, Linux, and Macintosh, but on the x86 CPU only.  Doing all that works well, and I have my older ...
I was browsing the net like millions of at home people, when this caught my eye. It talks about reasons for clustering raspberry pi  instead of tutorial approach. https://ubuntu.com/blog/building-a-raspberry-pi-cluster-with-microk8s is unique way in my opinion. Please add your thoughts. Is the software good? Have you tried to cluster a raspberry pi? Any good use cases? Clem ...
Pi Day has been and gone for this year but I can't resist doing one more very simple electronics experiment. I'm going to do it quickly, without a great deal of precision, simply to look at the basic ideas involved. If you want to see it done better, and you have a Pi and a reasonable oscilloscope, you could try it for yourself. This is a follow-on from my Pi Day blog, which you can find here Experimenting with a Raspberry Pi GPIO Pin  .   OK, what simple experiment can I do with ...

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