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by B.Goode
Thu Oct 22, 2020 12:11 pm
Forum: Beginners
Topic: Using SD from an RPi 3B in an RPi 4B
Replies: 1
Views: 54

Re: Using SD from an RPi 3B in an RPi 4B

I've seen lots of results from Google about "upgrading" (or reinstalling a new OS) an SD used for a pi3 to use in a pi4, but I just got a pi4, put in the SD card originally used in a pi3, and it's running.. Am I missing something? My OS is Rasbian 10 (Buster) I think you are missing the fact that a...
by B.Goode
Thu Oct 22, 2020 11:07 am
Forum: Media centres
Topic: Where to start with information center?
Replies: 2
Views: 63

Re: Where to start with information center?

Hi. I wanna turn my Raspberry Pi 1b into a information center to display buss time and weather in my area. I'm a complete newbie on this, and want to learn how. Want some kind of direction on where to start. Cheer /R Start by downloading the recommended and supported RasPiOS Buster Operating System...
by B.Goode
Wed Oct 21, 2020 1:52 pm
Forum: Networking and servers
Topic: Ethernet on raspberry pi 4 model b
Replies: 1
Views: 76

Re: Ethernet on raspberry pi 4 model b

Dear sir/madam, I needed to buy a Raspberry PI 4 for my study. I have set it up but there is a problem. I want to connect to internet using an ethernet cable but it is not working. When I put the cable into my laptop and the Raspberry PI, the laptop says 'unknown network, no internet access'. The i...
by B.Goode
Wed Oct 21, 2020 7:00 am
Forum: Automation, sensing and robotics
Topic: connecting sensors to raspberry pi
Replies: 2
Views: 88

Re: connecting sensors to raspberry pi

Hello, thank you for reading my post. i am working on a school project, and i need to attach some sensors to a raspberry pi 3 b+. i have looked online for resources but i cant find anything. i will post a link to a sample sensor, but i need information on how to do it in general. thanks in advance,...
by B.Goode
Tue Oct 20, 2020 4:01 pm
Forum: Troubleshooting
Topic: raspberry pi doesn't boot(i think 3v3 pin shortened)
Replies: 10
Views: 276

Re: raspberry pi doesn't boot

i ve already seen it. thanks anyway) i saw that they are working on this problem but am not sure if the solution will bring back the broken ones or it's just for the new ones. but it seems that no update yet regarding this problem. "i saw that they are working on this problem but am not sure if the...
by B.Goode
Tue Oct 20, 2020 1:45 pm
Forum: Troubleshooting
Topic: raspberry pi doesn't boot(i think 3v3 pin shortened)
Replies: 10
Views: 276

Re: raspberry pi doesn't boot

There is a summary of all the knowledge accumulated from these forums during the past 8 years about difficulties getting an RPi to boot, see - STICKY: Is your Pi not booting? (The Boot Problems Sticky) - https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=58151 There is a specific section dealin...
by B.Goode
Tue Oct 20, 2020 1:42 pm
Forum: Beginners
Topic: Suggested area of Raspberry Engineering
Replies: 3
Views: 152

Re: Suggested area of Raspberry Engineering

rvzcwb wrote:
Tue Oct 20, 2020 12:48 pm
the Raspberry Pi4 processor quickly reaches 70 degrees celsius.


Why do you think that is a problem that needs additional attention from the Raspberry Pi engineers?

Have you researched the work they have already put into dealing with heat issues?
by B.Goode
Tue Oct 20, 2020 11:04 am
Forum: C/C++
Topic: Converting c code into assembly for Rasberry pi
Replies: 26
Views: 729

Re: Converting c code into assembly for Rasberry pi

awaissajid19 wrote:
Tue Oct 20, 2020 11:00 am
Thank You. But the code will be optimized right ?

Your choice...

https://gcc.gnu.org/onlinedocs/gcc/Opti ... ze-Options
by B.Goode
Tue Oct 20, 2020 10:59 am
Forum: Troubleshooting
Topic: RPi3 failed with error -2
Replies: 6
Views: 116

Re: RPi3 failed with error -2

I was looking the sys `syslog` file and I saw these lines. What does it mean? Aug 20 11:54:29 raspberrypi kernel: [ 14.034253] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.txt failed with error -2 Oct 20 03:48:46 raspberrypi systemd[16369]: gpgco...
by B.Goode
Tue Oct 20, 2020 9:45 am
Forum: Raspberry Pi OS
Topic: Raspberry Pi OS trademark?
Replies: 12
Views: 807

Re: Raspberry Pi OS trademark?

Have they ever? Half the problem is that most of the competitors seem to be pretty small, usually Chinese groups, who don't seem all that likely to actually care. That said, most seem to coyly refer to 'competitor SBC' in benchmarks, so... We do have people who specifically look the trademark infri...
by B.Goode
Mon Oct 19, 2020 6:22 pm
Forum: Troubleshooting
Topic: [Documentation] OTP really programmable only once?
Replies: 6
Views: 137

Re: [Documentation] OTP really programmable only once?

I think you are looking for complexity where none exists. I would tend to believe that a specific individual setting can only be changed ONCE. Because there might be circumstances where further changes to OTHER settings might be undesirable there exists a master switch, also only available ONCE, whi...
by B.Goode
Mon Oct 19, 2020 10:31 am
Forum: Beginners
Topic: 3.5" Rpi LCD module
Replies: 6
Views: 146

Re: 3.5" Rpi LCD module

I have purchased this LCD module from Electronicscomp.com. Here is the link to the same: https://www.electronicscomp.com/3.5-inch-tft-lcd-touch-screen-display-for-raspberry-pi?gclid=EAIaIQobChMI7PDc4siz7AIVUw4rCh1eig-0EAYYASABEgLAEvD_BwE I have no idea if it represents RaspberryPi. From that vendor...
by B.Goode
Mon Oct 19, 2020 9:18 am
Forum: General discussion
Topic: Software solution to setup and operate raspberry pi headless forever
Replies: 17
Views: 3228

Re: Software solution to setup and operate raspberry pi headless forever

http://woluxi.com/pi/index.html this link doesn't work Can you update on this? Forum user @sandeepn has not logged back into the forums since publishing the link to that non-existent website nearly 3 years ago. I think it is very unlikely, although not impossible, that you will hear from them. Sett...
by B.Goode
Mon Oct 19, 2020 9:11 am
Forum: Beginners
Topic: 3.5" Rpi LCD module
Replies: 6
Views: 146

Re: 3.5" Rpi LCD module

I wish to use the 3.5" Rpi lcd module with another microcontroller (PIC18F2550). I could only find some details of this module like: supply voltage, pinouts, interface(spi). But I need further details like: Data length (no of bits), command structure of lcd, initialization process of lcd. This I co...
by B.Goode
Mon Oct 19, 2020 8:38 am
Forum: Beginners
Topic: Upgrade offline raspbian
Replies: 7
Views: 198

Re: Upgrade offline raspbian

Hi everyone. I don't want to connect my raspberry pi to internet. So my question is how to upgrade raspbian without internet? I don't want to use ' sudo apt update' and ' sudo apt upgrade ' command. Take the microSD card out of your isolated RPi board. Move it to another RPi board that does have a ...
by B.Goode
Mon Oct 19, 2020 7:17 am
Forum: Beginners
Topic: Where can I buy something like RasPio Portsplus for Pi 4?
Replies: 12
Views: 439

Re: Where can I buy something like RasPio Portsplus for Pi 4?

Hi, I worry that I may count the GPIO pins incorrectly and burn the circuits. I came across RasPiO Portsplus but I cannot find it being sold in North America. Is there similar products that can be purchased easily? That appears to be a Pimoroni product. They ship to the US. See: https://shop.pimoro...
by B.Goode
Sun Oct 18, 2020 6:53 pm
Forum: Beginners
Topic: 2nd ip
Replies: 6
Views: 206

Re: 2nd ip

Simplest way is to undo the static IP address. Alternatively, set up a new SD card and *don't* give it a static IP address. Another method--though I wouldn't really recommend it--is to change the IP block in your own router to match enough of the one in school so that the IP addresses fall within i...
by B.Goode
Sun Oct 18, 2020 2:05 pm
Forum: Troubleshooting
Topic: I would like to have the CPU temp and speed on Raspberry Pi 3 B
Replies: 4
Views: 101

Re: I would like to have the CPU temp and speed on Raspberry Pi 3 B

That isn't an available option on a Pi3 in the menu. But according to the text of your question you want to do this on an RPi4B board, notwithstanding the thread topic/title. But anyway: just run the same RasPiOS Buster OS on both systems, then the options available will be the same and less confus...
by B.Goode
Sun Oct 18, 2020 11:02 am
Forum: Troubleshooting
Topic: RPI 3 B - Plug in earphones in the audio jack
Replies: 7
Views: 208

Re: RPI 3 B - Plug in earphones in the audio jack

Reminds me of Outnumbered, and 'if Godzilla fought King Kong... '

My money is on an RPi Engineer rather than a volunteer member of the forums...
by B.Goode
Sun Oct 18, 2020 11:00 am
Forum: Beginners
Topic: Where can I buy something like RasPio Portsplus for Pi 4?
Replies: 12
Views: 439

Re: Where can I buy something like RasPio Portsplus for Pi 4?

Or make your own. If you don't have a suitable bit of plastic just use card or even paper. +1 Reinforced by Raspberry Pi themselves. They have supporting documentation at https://www.raspberrypi.org/documentation/usage/gpio/ which contains a link to https://github.com/splitbrain/rpibplusleaf They a...
by B.Goode
Sun Oct 18, 2020 9:01 am
Forum: Advanced users
Topic: Raspberry Pi Cluster
Replies: 5
Views: 272

Re: Raspberry Pi Cluster

Hello, I have recently been experimenting with the raspberry pi and came across the need for a more powerful version. I am aware that there is such a thing as “cluster” and was wondering if there was any way to do this other than using Ethernet. The reason is because I am currently developing an op...
by B.Goode
Sat Oct 17, 2020 5:18 pm
Forum: Beginners
Topic: Raspi to PC communication
Replies: 2
Views: 127

Re: Raspi to PC communication

Hey guys, So i am trying to do face dedection using raspberrypi but the main problem is the raspi is very slow in face dedection. My computer is able to create about 15fps for face dedection but my raspi is only able to do like 0.6fpc with about 4sec delay. So i was thinking ifit would be faster if...
by B.Goode
Sat Oct 17, 2020 5:01 pm
Forum: Troubleshooting
Topic: need to make my boot config partition unable to be edited by the system.
Replies: 5
Views: 165

Re: need to make my boot config partition unable to be edited by the system.

does anybody here have a clue on how to make that one simple little annoying little file be uneditable by my system? :?: :?: :?: There's this script I want to test out, but it keeps adding a "#" to my dtoverlay=vc4-fkms-v3d. This makes it unable to deploy the emulationstation thingy. my boot config...
by B.Goode
Sat Oct 17, 2020 10:49 am
Forum: Python
Topic: Subprocess.run issue.
Replies: 2
Views: 121

Re: Subprocess.run issue.

I have this code nearly running. Th main issue is trying to get a shell script running. I know the script works if I manually double click and execute. I'm pretty sure it's just am issue with the last line of code. subprocess.run(['sh', '/pi/Documents/sync.sh']) The error report is sh: 0: Can't ope...
by B.Goode
Fri Oct 16, 2020 12:50 pm
Forum: Other
Topic: Can't connect to wifi raspberry pi 4 [KALI]
Replies: 6
Views: 956

Re: Can't connect to wifi raspberry pi 4 [KALI]

Has this been fixed yet? I have a Raspberry Pi 8gb model running Kali Linux 64 bit, I have tried numerous things I searched up on forums and youtube and I am unable to get my wifi working, it shows "Wi-Fi is disabled". I am fairly new to Raspberry Pi and Linux, I was hoping there would be a concret...

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