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by big77pil
Mon Jan 17, 2022 2:30 am
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.

I managed to get them working.

After installing octoprint with Rpi imager, I have to insert the card in the board purchased from facebook where it runs ok.
Then I have to run this code :

Code: Select all

sudo apt update
sudo apt full-upgrade
And if I change the card over to a board from the pi hut, it works fine.
by big77pil
Mon Jan 17, 2022 1:34 am
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.

Right ... so I returned all the boards to the ebay seller. I managed to buy 3 boards (2GB) from The Pi Hut website and 1 board (4GB) from facebook. I received the boards from the pi hut, started Rpi imager, wrote octoprint on a new card, plugged into 1st board and then I got an error - red led is so...
by big77pil
Thu Jan 13, 2022 10:06 pm
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.

Can't remember which one was first so I'm attaching all 4
by big77pil
Thu Jan 13, 2022 10:52 am
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.

Thanks for your help guys.
I will send these boards back to the seller. They are way too overpriced due to this shortage, and I am expecting to pay this price for fully working board and not one with problems.
by big77pil
Wed Jan 12, 2022 7:04 pm
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC address

Is there a way to fix this or should I return the boards ?
by big77pil
Wed Jan 12, 2022 5:40 pm
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC adrress

PhilE wrote:
Wed Jan 12, 2022 4:39 pm
Could you also post the output of "hcitool dev" for a few of these boards (ideally with the serial numbers)?

Code: Select all

$ grep Serial /proc/cpuinfo
$ hcitool dev
Serial : 100000001f5acbe2

Devices:
hci0 B8:27:EB:F0:61:48
by big77pil
Wed Jan 12, 2022 3:59 pm
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC adrress

Thanks. It seems to be using the Pi3B+ ethernet allocation scheme using the serial number instead of a pre-programmed mac address. As @cleverca22 said, please can you post "vcgencmd otp_dump" for both boards. Board 1: 08:00000000 09:00000000 10:00000000 11:00000000 12:00000000 13:00000000...
by big77pil
Wed Jan 12, 2022 3:07 pm
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC adrress

timg236 wrote:
Wed Jan 12, 2022 2:56 pm
The WiFi address appears to be from the Pi3B+ range so I suspect this is Network Manager.

If you can post the serial number of /proc/cpuinfo and a picture of the QR code then we might be able to check if the WiFi MAC address write to the WiFi OTP could have failed.
Pictures attached
by big77pil
Wed Jan 12, 2022 2:59 pm
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC adrress

Some updates : 1 - I have this card with Octopi installed using Raspberry Pi Imager. No changes were made to the OS. I have used the same card in all the boards purchased from eBay and all the boards have the same MAC for wifi (Wlan0). ebay 1 wifi: b8:27:eb:74:f2:6c eth: b8:27:eb:5a:cb:e2 ebay 2 wif...
by big77pil
Wed Jan 12, 2022 9:53 am
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Re: Did I buy fake raspberry pi 4s ? Same MAC adrress

I installed Octopi on boards from scratch using Raspberry Pi Imager with no cloning. I have 7 more boards installed in the same way and they are working without problems.

Looks like ethernet MACs are different and only wifi MACs are identical.
by big77pil
Wed Jan 12, 2022 1:54 am
Forum: Troubleshooting
Topic: Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.
Replies: 34
Views: 1438

Did I buy fake raspberry pi 4s ? Same MAC address on multiple boards.

Hello guys, Wondering if anyone had the same problem . I bought 4 raspberry pis from here : https://www.ebay.co.uk/itm/165264942089 I have installed octoprint on first one and everything was working fine. When I installed the second one, I started to have loads of problems with the internet router s...
by big77pil
Sat Feb 20, 2021 3:58 pm
Forum: For sale
Topic: Raspberry Pi 2/3/4 Case Enclosure With Cable Strain Relief VESA 75x75 100x100
Replies: 0
Views: 1934

Raspberry Pi 2/3/4 Case Enclosure With Cable Strain Relief VESA 75x75 100x100

100 x 100mm & 75 x 75mm VESA Monitor Mountable Fits Raspberry pi 2, 3 & 4 3D printed using high quality recyclable PLA plastic Open Frame Design - Fan not needed for basic tasks Ready for 30mm fan - Fan NOT included Strain Relief - No hanging cables Cutouts for GPIO, Camera and Display Ports...
by big77pil
Sun Jan 20, 2019 12:04 pm
Forum: Camera board
Topic: M12 lens adapter for camera module
Replies: 81
Views: 95643

Re: M12 lens adapter for camera module

by big77pil
Sun Sep 24, 2017 5:21 pm
Forum: Other projects
Topic: DIN Mount for Raspberry Pi 3, Pi 2, Model B, Pi Zero W
Replies: 0
Views: 1989

DIN Mount for Raspberry Pi 3, Pi 2, Model B, Pi Zero W

Hi,
Just finished a new design for this week.
It is a DIN rail mount for Raspberry Pi 3, or for 2 Pi Zeros.
Have a look below :

https://www.youtube.com/watch?v=39u6WuQqQR0

If you need one : http://www.ebay.co.uk/itm/282667684239

Thanks !
by big77pil
Sat Sep 23, 2017 1:37 pm
Forum: Camera board
Topic: 12mm lens holder for Pi Camera Boards
Replies: 3
Views: 1588

Re: 12mm lens holder for Pi Camera Boards

STL file available here : https://www.thingiverse.com/thing:2550073
Free to print for non commercial use.

If you want to buy it , check the link below :
http://www.ebay.co.uk/itm/282666215348
by big77pil
Fri Sep 22, 2017 10:59 am
Forum: Camera board
Topic: 12mm lens holder for Pi Camera Boards
Replies: 3
Views: 1588

Re: 12mm lens holder for Pi Camera Boards

Yes, I will upload it soon on thingiverse but bear in mind that you will need a tap drill to make the thread. Will also make them available on ebay.

Thanks
by big77pil
Sun Sep 17, 2017 10:00 pm
Forum: Camera board
Topic: 12mm lens holder for Pi Camera Boards
Replies: 3
Views: 1588

12mm lens holder for Pi Camera Boards

Hi guys, Check out my 12mm lens holder design for Pi camera boards. They are 3D Printed. Let me know what do you think and if I should do any improvements. https://www.youtube.com/watch?v=l0nsT748rpc If you have a 3D Printer , the STL file available here : https://www.thingiverse.com/thing:2550073 F...
by big77pil
Sat Sep 16, 2017 9:43 am
Forum: Other projects
Topic: waterthight case
Replies: 19
Views: 13996

Re: waterthight case

Hi guys, project is moving forward. I was hoping to be finished by now but my time is very limited. I have attached some pictures with the internal frame.
by big77pil
Wed Sep 06, 2017 9:45 pm
Forum: Other projects
Topic: waterthight case
Replies: 19
Views: 13996

Re: waterthight case

I am planing to use rubber like paint on the parts that come in contact with the water. Hi, I am working on a 3d printed submersible enclosure. Hopefully it will be ready in a week. What are the most important features you would expect from a submersible enclosure ? Chances are a 3D printed case won...
by big77pil
Wed Sep 06, 2017 10:18 am
Forum: Other projects
Topic: waterthight case
Replies: 19
Views: 13996

Re: waterthight case

Hi, I am working on a 3d printed submersible enclosure. Hopefully it will be ready in a week.

What are the most important features you would expect from a submersible enclosure ?
by big77pil
Wed Sep 06, 2017 1:20 am
Forum: Other projects
Topic: Pi Zero & Pi 3 cases to fit UK plugs - no more Pis on the floor
Replies: 10
Views: 6736

Re: Pi Zero case to fit UK plugs - no more Pis on the floor

And a sneak peek at the CCTV case for Pi zero I am working at .
by big77pil
Wed Sep 06, 2017 1:15 am
Forum: Other projects
Topic: Pi Zero & Pi 3 cases to fit UK plugs - no more Pis on the floor
Replies: 10
Views: 6736

Re: Pi Zero case to fit UK plugs - no more Pis on the floor

Pictures of the raspberry pi 3 UK plug case.
It is not tested yet. Still waiting for the board to arrive.

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