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by bensimmo
Sun Jul 12, 2020 9:30 am
Forum: Python
Topic: Which is a better Python IDE?
Replies: 2
Views: 114

Re: Which is a better Python IDE?

Try them both. There are also many others out there. Mu is good for pygame and using micropython in addition to programming microbits, CPX and ESP devices. As well as simple python programmes It's designed to be a simple setup the learn with. I'll be honest and I've not used it much beyond that. Tho...
by bensimmo
Sat Jul 11, 2020 8:24 pm
Forum: General discussion
Topic: Which OS is the fastest ?
Replies: 48
Views: 1684

Re: Which OS is the fastest ?

I think in python you'll need to move to the multiprocessing module to use all cores and not just the threading module. Normal Python3 just sits on one core, as mentioned earlier and by design, that's why you are seeing 25%. one whole core being used. That's the way of python. look for alternatives....
by bensimmo
Sat Jul 11, 2020 8:12 pm
Forum: Beginners
Topic: Switch to turn on and off the P4
Replies: 4
Views: 148

Re: Switch to turn on and off the P4

oddly, I still use the one next to the plug on the wall and when that's hard to reach I yank the cable out of the Pi.

On one, I was so lazy, I asked Alexa to turn off the plug.


To turn them back on again I ...
by bensimmo
Sat Jul 11, 2020 8:05 pm
Forum: Off topic discussion
Topic: Pis...the answer is Pis!
Replies: 22
Views: 820

Re: Pis...the answer is Pis!

ejolson wrote:
Sat Jul 11, 2020 6:22 pm
.....Even if not, many teachers are over 50.
luckily, here in the UK, that's a lesser problem.


UK teachers are younger and paid less than in any other developed country, report finds - Independent
by bensimmo
Sat Jul 11, 2020 2:48 pm
Forum: Off topic discussion
Topic: Pis...the answer is Pis!
Replies: 22
Views: 820

Re: Pis...the answer is Pis!

'vulnerable' are the people who cannot afford the computers. Are on care plans, child plans, ehcp and a few other. The schools have been open or available to go elsewhere if in a MAT or similar. Parents can choose for them to go in or not. they have also had promise of computers to help out they hav...
by bensimmo
Fri Jul 10, 2020 2:16 pm
Forum: Troubleshooting
Topic: Trying to run leafpad as sudo...getting an error
Replies: 11
Views: 242

Re: Trying to run leafpad as sudo...getting an error

leafpad is a desktop application, not the command line you are in via SSH.

You'll need to do it at the Pi, or use VNC to get the desktop or use something like 'nano' for a terminal editor.
by bensimmo
Fri Jul 10, 2020 2:12 pm
Forum: Off topic discussion
Topic: Pis...the answer is Pis!
Replies: 22
Views: 820

Re: Pis...the answer is Pis!

https://www.bbc.com/news/uk-england-53323405 The problem is net access devices for kids home due to school closures and trying to keep up. (The one "hole" is video conferencing, and that's being worked on.) I'm not convinced the answer is Pis. Well not unless you have one TV per child and either br...
by bensimmo
Fri Jul 10, 2020 9:44 am
Forum: Off topic discussion
Topic: Pis...the answer is Pis!
Replies: 22
Views: 820

Re: Pis...the answer is Pis!

Getting Pi's or PC's is one thing. Using Teams or Google Classroom is another (few other solutions are used in the UK, I can name a couple, but they're the main ones I've seen. Primary seem to use Classroom, Senior's use Team/SharePoint). Zoom still has it 'trust' problems but is becoming more and m...
by bensimmo
Thu Jul 09, 2020 7:30 pm
Forum: General discussion
Topic: Which OS is the fastest ?
Replies: 48
Views: 1684

Re: Which OS is the fastest ?

I think a slightly customised version of Raspbian is fastest, circling the earth at quite a speed on the ISS.
by bensimmo
Thu Jul 09, 2020 11:05 am
Forum: Raspberry Pi OS
Topic: How come the Serial Console needs to be enabled
Replies: 9
Views: 271

Re: How come the Serial Console needs to be enabled

It was enabled on early versions of Raspbian, but it no longer is. I forget exactly when that change was made. probably Pi3 and the need for the serial port on Gpio (and so the console too) to have the frequency locked. hippy, I believe you still need to enable the serial port to use the console wi...
by bensimmo
Thu Jul 09, 2020 8:32 am
Forum: Beginners
Topic: "Introducing Raspberry Pi Imager, our new imaging utility"
Replies: 108
Views: 7896

Re: "Introducing Raspberry Pi Imager, our new imaging utility"

Both my Dells (G3 2019/20 and Inspiron ~2018) 'work' with the program, as in load. It did however bluescreen it at the end of an image on one and didn't like it much on the other during writing. I can check again, I stopped using them. This was near the launch of the program. (sorry for the unhelpf...
by bensimmo
Thu Jul 09, 2020 7:50 am
Forum: General discussion
Topic: Powerswitch that prevents startup after powercut
Replies: 16
Views: 498

Re: Powerswitch that prevents startup after powercut

could this be done with an ESP based smart plug and use Tasmota or similar on it. With my setups, I can have the switch not turn on the device on power up. You can send it an mqqt or webpage command to switch of and almost certainly give it a delay. Probably have it send the Pi the shut down command...
by bensimmo
Thu Jul 09, 2020 7:34 am
Forum: Beginners
Topic: "Introducing Raspberry Pi Imager, our new imaging utility"
Replies: 108
Views: 7896

Re: "Introducing Raspberry Pi Imager, our new imaging utility"

Both my Dells (G3 2019/20 and Inspiron ~2018) 'work' with the program, as in load. It did however bluescreen it at the end of an image on one and didn't like it much on the other during writing. I can check again, I stopped using them. This was near the launch of the program. (sorry for the unhelpfu...
by bensimmo
Thu Jul 09, 2020 7:22 am
Forum: Assistive technology and accessibility
Topic: Special needs switches, a Pi and TV
Replies: 3
Views: 156

Re: Special needs switches, a Pi and TV

Hit that big HELP link at the top of the page (or in the burger menu in mobile). right in front off you is getting started ... start there, then try some of the projects out. Physical introduction etc. Are you turning the channel over on a normal TV, (IR/BT/WiFi..?) There is also an option, if in th...
by bensimmo
Wed Jul 08, 2020 7:55 pm
Forum: Off topic discussion
Topic: An observation...NOT a prediction and NOT a "wish list"
Replies: 24
Views: 731

Re: An observation...NOT a prediction and NOT a "wish list"

I'd like to observe that there are currently no 16GB chips that would fit. This was said about 8GB. And although we've had a couple of people asking for 16GB, why on EARTH would you need that much memory on a limited CPU device like the Pi4. "No one would EVER need more that 640k" I've got a deskto...
by bensimmo
Wed Jul 08, 2020 5:15 pm
Forum: Off topic discussion
Topic: An observation...NOT a prediction and NOT a "wish list"
Replies: 24
Views: 731

Re: An observation...NOT a prediction and NOT a "wish list"

and ? In my observation... 1GB was a restrictive limit to using the computer, 4 isn't and 8 certainly isn't Unless servers need the 16GB to make them more cost effective, I see no point to it I have 16GB in one of my computers, the only thing that takes 8GB on it's own is a large city building game ...
by bensimmo
Tue Jul 07, 2020 6:04 pm
Forum: General discussion
Topic: How is OKDO?
Replies: 38
Views: 1332

Re: How is OKDO?

OctoPi does (The Pi OS version of octoprint), it was added last year.
by bensimmo
Tue Jul 07, 2020 5:40 pm
Forum: General discussion
Topic: How is OKDO?
Replies: 38
Views: 1332

Re: How is OKDO?

thatchunkylad198966 wrote:
Tue Jul 07, 2020 3:41 pm
bensimmo wrote:
Tue Jul 07, 2020 3:29 pm
and yes all other Pi's 1,2,3,4/zero use the microUSB connection. https://www.raspberrypi.org/products/ra ... el-b-plus/
The 4 doesn't use a Micro USB...
continuation typo as that wouldn't be all other, corrected.
by bensimmo
Tue Jul 07, 2020 3:29 pm
Forum: General discussion
Topic: How is OKDO?
Replies: 38
Views: 1332

Re: How is OKDO?

The Pi4 2GB is also 40% cheaper. The 3B+ works great for octopi/octoprint though (I have one running it) and yes all other Pi's 1,2,3/zero use the microUSB connection. https://www.raspberrypi.org/products/raspberry-pi-3-model-b-plus/ You should start another topic for your questions, this is about t...
by bensimmo
Tue Jul 07, 2020 3:16 pm
Forum: General discussion
Topic: A Pi Pie Chart
Replies: 138
Views: 19416

Re: A Pi Pie Chart

Just because I was reading the thread New processor run (in a laptop) root@G3ntleGiraffe:~/pichart-34# ./pichart-openmp -t "Ubuntu WSL2 Win10 i5-9300H" pichart -- Raspberry Pi Performance OPENMP version 34 Prime Sieve P=14630843 Workers=8 Sec=0.196982 Mops=4743.21 Merge Sort N=16777216 Workers=16 Se...
by bensimmo
Tue Jul 07, 2020 2:19 pm
Forum: Automation, sensing and robotics
Topic: Waterproof sensors and modules
Replies: 7
Views: 243

Re: Waterproof sensors and modules

Oh, All of it could fit in a small box, and just the power lead comping out OR break off smaller to an even smaller box. AS it's not going to be subjected to the extremes outside and water would be minimal, probably just 'damp from humidity' I would but a BME280 (temp/humidity/pressure) or the 680 (...
by bensimmo
Tue Jul 07, 2020 10:33 am
Forum: Automation, sensing and robotics
Topic: Waterproof sensors and modules
Replies: 7
Views: 243

Re: Waterproof sensors and modules

either way, my solution is small junction style boxes from screwfix (UK) great for outdoor and the rain, enter from the side and exit/enter underneath.
by bensimmo
Tue Jul 07, 2020 10:26 am
Forum: Automation, sensing and robotics
Topic: Waterproof sensors and modules
Replies: 7
Views: 243

Re: Waterproof sensors and modules

how are the sensors going to work if they need the air and are waterproof? The temp sensor is easy, but depends what you need DS18B20 should do fine. particle sensors need large air flow 6 mm or greater holes in the side, they'll get water in. Pressure and humidity are similar, they can cope (the BM...
by bensimmo
Mon Jul 06, 2020 7:52 am
Forum: Raspberry Pi OS
Topic: F2FS image available for testing
Replies: 16
Views: 1635

Re: F2FS image available for testing

is this still being investigated, I was going to have a look for my sensors and lora setup (were they are logging and power may be lost or pulled)

What are the benefits?
What are the downsides?

What should I be looking for as ext4 has been fine for me just yanking the power on my Zero etc.
by bensimmo
Mon Jul 06, 2020 7:46 am
Forum: Other projects
Topic: How do i test an air quality sensor
Replies: 3
Views: 149

Re: How do i test an air quality sensor

what does your airquality sensor compromise of? There are quite a lot of paper on cheap particle sensors and how they count. (to calibrate you would need a calibrated version to compare to, or a know volume of particles). For pressure and temperature that should be self explanatory. You will.need th...

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