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by B.Goode
Tue Jul 14, 2020 12:21 pm
Forum: Beginners
Topic: incorrect default password for Raspbian
Replies: 18
Views: 1050

Re: incorrect default password for Raspbian

I'm facing the same issue. Model: Raspberry PI 4B Image:2020-05-27-raspios-buster-armhf.img Did you solve the issue, can you give me some proposal? It is difficult to see how you can be facing the same issue, since the Operating System you are using was not released until several months after the i...
by B.Goode
Tue Jul 14, 2020 12:12 pm
Forum: General discussion
Topic: Move OS back from USB to SD
Replies: 6
Views: 196

Re: Move OS back from USB to SD

Bartek wrote:
Tue Jul 14, 2020 11:25 am

Hehe, I must say I'm a cheater. I have several Raspberry Pis and on the one that I have issues with I run openHabian instead of Raspbian


I'd call it 'time-waster.' Blocking.
by B.Goode
Tue Jul 14, 2020 9:09 am
Forum: Ubuntu
Topic: Can I Use RaspberryPi3 SD card to RaspberryPI4?
Replies: 1
Views: 61

Re: Can I Use RaspberryPi3 SD card to RaspberryPI4?

I used RaspberryPi3 that UbuntuMate 18.04. But I buy RaspberryPi4 to upgrade my software I tried to put RaspberryPi3 SD Card to RapberryPi4 but didn`t run How Can I use RaspberryPi3 SD Card(UbuntuMate 18.04) on RaspberryPi4? https://ubuntuforums.org/ and https://askubuntu.com/ are good places to as...
by B.Goode
Tue Jul 14, 2020 7:21 am
Forum: General discussion
Topic: Move OS back from USB to SD
Replies: 6
Views: 196

Re: Move OS back from USB to SD

what exactly does 'move filesystem to USB' in the latest versions of raspi-config do? How do you navigate to that option in raspi-config? I'm not seeing it. Version 20200707 But the answer is that raspi-config is a shell script. So it is a text file. So you can examine it to determine what action i...
by B.Goode
Tue Jul 14, 2020 7:13 am
Forum: Ubuntu
Topic: Unable to install RealVNC Server
Replies: 11
Views: 205

Re: Unable to install RealVNC Server

On the RaspBerry PI4 I installed Ubuntu for the Raspberry. Everything works fine without problems. Now, however, I try to install RealVNC Server, but it stops saying that some libraries are missing. This is by downloading VNC Server for Ubuntu and Raspberry. Where am I wrong? https://ubuntuforums.o...
by B.Goode
Tue Jul 14, 2020 6:53 am
Forum: Troubleshooting
Topic: Use "SERVOBLASTER" LIB to control multiple step motors
Replies: 1
Views: 48

Re: Use "SERVOBLASTER" LIB to control multiple step motors

Hi all: I am working on controlling multiple step motors with "servoblaster lib" these days. The requirements of controlling are: 1. multiple step motors running simultaneously (√) 2. different step motors running at different frequencies (X) 3. different step motors running at different idle_timeo...
by B.Goode
Mon Jul 13, 2020 5:57 pm
Forum: General discussion
Topic: Copy file from Pi USB to PC
Replies: 6
Views: 208

Re: Copy file from Pi USB to PC

Hello, I do not know if there is a specific term used for what I would like to achieve. I have some files in my Raspberry Pi headless. I would like to connect Pi USB to a PC USB and want it to display only these files as read-only for copying to PC. It is not important for me the filesystem. It can...
by B.Goode
Mon Jul 13, 2020 4:35 pm
Forum: Python
Topic: No headset sound, pygame on rasperry pi os
Replies: 3
Views: 80

Re: No headset sound, pygame on rasperry pi os

Scratching my head realy hard here. As it says in the subject, no sound from python with pygame on headset output. *Neither python2 or python3 gives sound. *Running Buster lite dated 2020-02-13 and is updated with dist-upgrade *I've set the sound output to "headphones" with raspi-config *Used alsam...
by B.Goode
Mon Jul 13, 2020 3:57 pm
Forum: Other projects
Topic: GPS and camera
Replies: 2
Views: 100

Re: GPS and camera

Hey All, If someone could point me in the right direction that would be awesome. I have done my google searches but found the info all over the map. I am looking to build a device that will track my movements (walking) with the ability to take pictures and geotag. The goal is to carry this device a...
by B.Goode
Mon Jul 13, 2020 3:52 pm
Forum: Networking and servers
Topic: mqtt newbie
Replies: 5
Views: 135

Re: mqtt newbie

I ask because I want to send images from a ESP32 Cam to a Raspberry Pi for image classification. So I thought I'd make the Pi the broker and subscribe to a topic "photos" and then send the photos from the esp to the topic "photos". Is this possible? Yes. (Assuming you know how to configure the ESP3...
by B.Goode
Mon Jul 13, 2020 3:19 pm
Forum: Networking and servers
Topic: mqtt newbie
Replies: 5
Views: 135

Re: mqtt newbie

Quintus wrote:
Mon Jul 13, 2020 3:14 pm
Hi all,

I'm new to mqtt and have a simple question. Can a single Pi be the mqtt broker AND be a subscriber to a topic?

Yes.
by B.Goode
Mon Jul 13, 2020 2:57 pm
Forum: Python
Topic: check if exist a file
Replies: 7
Views: 192

Re: check if exist a file

Hi, i need it inside a python script, because all of my function written in python. I tried many ways but nothing of them are still working, so i don´t like to post all my bad tries. https://docs.python.org/3/library/os.path.html#os.path.exists ( an alternative reference for the solution already of...
by B.Goode
Mon Jul 13, 2020 2:40 pm
Forum: General discussion
Topic: gzip: stdin: not in gzip format
Replies: 16
Views: 407

Re: gzip: stdin: not in gzip format

Why are you using rpi-update? You're clearly not qualified to run with the beta/experimental kernel/bootcode as you'd know how to solve your problem. What triggered your foolhardy use of rpi-update? What are you trying to acheive? What problem are you trying to solve by compiling strange modules? F...
by B.Goode
Mon Jul 13, 2020 1:01 pm
Forum: Troubleshooting
Topic: Problem with the audio in Audacity on the raspberry pi 4.
Replies: 2
Views: 68

Re: Problem with the audio in Audacity on the raspberry pi 4.

Hello (firstly, sorry for my bad english). I'm running raspbian on my pi 4. I download audacity to edit some audios, but when I play an audio, I don't get any sound. Maybe it's a silly mistake, but I don't know what to do. It would be awesome if someone could help me. Have you read the blog post th...
by B.Goode
Mon Jul 13, 2020 12:34 pm
Forum: Troubleshooting
Topic: SD card is read-only on Windows
Replies: 9
Views: 2155

Re: SD card is read-only on Windows

I have the same problem, but some of my sd-card with RB3 have no problem. Only one sd-card. I'm still looking for the answer. The thread begins: I have flashed Raspbian Jessie Lite (2017-03-02) on Windows 10 with Win32DiskImager. Why do you need to use a twice-superceded version of the RasPiOS Oper...
by B.Goode
Mon Jul 13, 2020 11:49 am
Forum: Networking and servers
Topic: Connecting to Pi's public IP address
Replies: 5
Views: 150

Re: Connecting to Pi's public IP address

This is not really a duplicate. It's slightly different. I already setup port forwarding on my router (port 80) but that did not change anything, i still get a timeout. I read somewhere that i should forward port 80 but i am not sure if that is correct or not. Also, i can connect to the pi via SSH ...
by B.Goode
Mon Jul 13, 2020 11:32 am
Forum: Beginners
Topic: sample code buggy?
Replies: 30
Views: 3789

Re: sample code buggy?

But that news about Ben's employment status dates from January 2020, whereas the tutorial was relegated to Archived status by Marc Scott ( @Coding2Learn ) in June 2017. tl;dr - the code is unsupported by its author/publiusher. Extending the life of a thread commenting on bugs in it seems inappropri...
by B.Goode
Mon Jul 13, 2020 11:26 am
Forum: Networking and servers
Topic: Connecting to Pi's public IP address
Replies: 5
Views: 150

Re: Connecting to Pi's public IP address

I am using grafana to create graphs of sensor data on the raspberry pi. I can access the dashboard from the raspberry pi through a web browser using the URL: [url]localhost:3000[/url]. However, i cannot seem to be able to connect to the dashboard when i replace the URL with <RPi IP address>:3000 . ...
by B.Goode
Mon Jul 13, 2020 11:19 am
Forum: Python
Topic: servo control with GPIO
Replies: 2
Views: 71

Re: servo control with GPIO

Welcome to the Raspberry Pi forums. Hi there, Im using raspberry pi to control a servo motor and so far in my research i havent found a way to make the servo rotate to a certain position per example 90º when i type, per example, the letter "d" on the keyboard Best regards, Gonçalo Ferreira Try the A...
by B.Goode
Mon Jul 13, 2020 11:02 am
Forum: Beginners
Topic: sample code buggy?
Replies: 30
Views: 3789

Re: sample code buggy?

The resource which is the subject of this ancient thread now carries this warning: This is an archived resource. The repo will remain available but the resource will no longer be maintained or updated. Some or all parts of the resource may no longer work. Further comment on it seems pointless... Th...
by B.Goode
Mon Jul 13, 2020 9:45 am
Forum: Troubleshooting
Topic: ACL on the Pi working?
Replies: 3
Views: 93

Re: ACL on the Pi working?

Here is a question. I used to have this set up years ago. But I must be missing something. On my Pi have my web hosting user folders umasked as 700 so they see their own folders only. I set a acl for my admin group to default "rwx" for these same folders so I can pop in and fix things when a user r...
by B.Goode
Mon Jul 13, 2020 9:41 am
Forum: Ubuntu
Topic: Ubuntu Mate on RPi4?
Replies: 9
Views: 300

Re: Ubuntu Mate on RPi4?

I looked at the page: https://ubuntu-mate.org/ports/raspberry-pi/ which is linked to from the official Pi downloads page at https://www.raspberrypi.org/downloads/ There it is stated that Ubuntu Mate for Raspberry Pi 18.04.2 is available. But when I read further the RPi4 is not listed as a supported...
by B.Goode
Mon Jul 13, 2020 9:36 am
Forum: Beginners
Topic: sample code buggy?
Replies: 30
Views: 3789

Re: sample code buggy?

xrange() is now range() Both range() and xrange() are built-in functions in Python that are used to generate integers or whole numbers in a given range . The range() and xrange() comparison is relevant only if you are using both Python 2.x and Python 3 . It is because the range() function in python...
by B.Goode
Sun Jul 12, 2020 3:34 pm
Forum: Beginners
Topic: Separate 3.3V and GND
Replies: 20
Views: 458

Re: Separate 3.3V and GND

Hello all. Is a good way to use the raspberry PI only for data transmissions and get the 3V3 pin and GND from a transformer? I've some noise problems related to GND using an MCP3008 and I want to try if an external transformer could fix that. If you are going to connect a signal from an external de...
by B.Goode
Sun Jul 12, 2020 2:25 pm
Forum: Troubleshooting
Topic: Changed behavior in the launch Changed behavior in the launch bar after Stretch to Buster upgrade
Replies: 1
Views: 62

Re: Changed behavior in the launch bar

Hello, I encounted a problem on my raspberry pi after to have full-upgraded from strectch to buster... After the final reboot, my launch icon disappeared (the one that equals the start menu), the menu being present... the icon is only not displayed while the path is valid and accessible. (the rapsb...

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