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by chwe
Mon Mar 18, 2019 2:05 am
Forum: General discussion
Topic: Zero clusters? Pi day deals
Replies: 15
Views: 718

Re: Zero clusters? Pi day deals

hmm if the only reason to build a cluster is cause the bord is on discount.. then.. probably you should save the money.. :D The Zero is probably the worst SBC to build up a cluster.. if you build a display cluster you've to deal with all the mini HDMI and for everything involving calculation power.....
by chwe
Tue Feb 19, 2019 4:45 pm
Forum: Compute Module
Topic: Doubt related to the OTA update Mechanism for Debian Operating System
Replies: 20
Views: 1333

Re: Doubt related to the OTA update Mechanism for Debian Operating System

considering you don't update u-boot nor binaries provided by RPT to get the board booting.. Never saw someone repairing a broken u-boot OTA.. :P As someone dealing with a bunch of SBCs (most of them not RPis), tied to a distro which delivers (has delivered) kernel and u-boot updates via 'apt-get upg...
by chwe
Tue Feb 19, 2019 1:33 pm
Forum: General discussion
Topic: Using RPI with camera below 0 Celsius?
Replies: 27
Views: 851

Re: Using RPI with camera below 0 Celsius?

Leave it in a bowl of uncooked rice for a day or two. That can get rid of any moisture. which is a myth.. and IMO more harming than helping.. Yes moisture will be soaked up by 'dry rice', salts will stay there and soldered tin doesn't like electrolytes (even in 'mostly dry' form). Wash it with deio...
by chwe
Fri Feb 15, 2019 3:40 pm
Forum: General discussion
Topic: Weather station in freezing weather: questions
Replies: 17
Views: 592

Re: Weather station in freezing wheather: questions

A researcher at CERN managed to make one fail by getting too cold. It quit working at -180C. I can also dip my hand into liquid nitrogen, as long as it's only for a short time it won't even hurt me. But a -180°C experiment tells you nothing about durability at lower temperatures.. At least @DougieL...
by chwe
Thu Feb 14, 2019 8:34 pm
Forum: General discussion
Topic: Communication with multiple arduinos
Replies: 2
Views: 127

Re: Communication with multiple arduinos

Must it be a Arduino? Do you know ESP8266/ESP32 boards? there you could just send it over W-lan. How do you send your data wireless to the Pi (not decided yet, or not mentioned). Are your Arduinos planned to run on battery?
by chwe
Thu Feb 14, 2019 3:49 pm
Forum: General discussion
Topic: sd card characteristics
Replies: 11
Views: 429

Re: sd card characteristics

IMO only A1/A2 rated cards are worth in those days.. The price difference between outdated slow card and an A1 rated one in minor and for sure not worth it. You may be correct. My problem is that, for a lot of uses, I don't need a large card. I'm running many Pis on 8GB cards, and those simply don'...
by chwe
Wed Feb 13, 2019 7:18 pm
Forum: General discussion
Topic: sd card characteristics
Replies: 11
Views: 429

Re: sd card characteristics

IMO only A1/A2 rated cards are worth in those days.. The price difference between outdated slow card and an A1 rated one in minor and for sure not worth it.
by chwe
Tue Feb 12, 2019 8:31 pm
Forum: General discussion
Topic: install unrar nonfree on raspbian (Stretch)
Replies: 7
Views: 420

Re: install unrar nonfree on raspbian (Stretch)

Thank you @chwe, @rpdom, @DougieLawson for your help I have some how install it or so i think may be after fitting ever conner. I will list down all of the step please correct me if am wrong. I followed this link https://raspberrypi.stackexchange.com/questions/3617/how-to-install-unrar-nonfree sudo...
by chwe
Tue Feb 12, 2019 2:20 pm
Forum: General discussion
Topic: Next raspberry ethernet?
Replies: 34
Views: 1482

Re: Next raspberry ethernet?

So, none of them hit 1000mbits/s then. As I said. Everyone knows that the Pi is limited to its USB speed and that these devices are faster. That's not the point. The point is that all these devices are GigE, including the Pi, independent of the throughput. C'mon.. there's a significant difference b...
by chwe
Tue Feb 12, 2019 1:22 am
Forum: General discussion
Topic: Next raspberry ethernet?
Replies: 34
Views: 1482

Re: Next raspberry ethernet?

What are you not getting out of it ? Is it latency, response time, transferrate ? Or is it something else ? transfer-rate when needed.. If I don't care I go for an SBC without GbE. If I would ever buy a 3b+ I would probably cap it to full speed cause I don't want to deal with flow-control.. When me...
by chwe
Mon Feb 11, 2019 11:50 pm
Forum: Troubleshooting
Topic: Cannot SSH Into my Raspberry PI Zero W
Replies: 8
Views: 348

Re: Cannot SSH Into my Raspberry PI Zero W

You could run this bash command to find all devices on your network, in this example 192.168.0.0 is used: /bin/bash -c 'for a in {1..254}; do ping -q -c 1 -W 1 192.168.0.$a >> /dev/null && echo $a; done' or as everyone else using nmap for such a job.. nmap -sP 192.168.0.0/24 @Lasklo an USB-UART ada...
by chwe
Mon Feb 11, 2019 11:00 pm
Forum: General discussion
Topic: install unrar nonfree on raspbian (Stretch)
Replies: 7
Views: 420

Re: install unrar nonfree on raspbian (Stretch)

https://gist.github.com/chwe17/89db2526 ... 991761894f

now it's really a script and not only half of the stack answer he refereed to... It works assuming you're on raspian stretch.
by chwe
Mon Feb 11, 2019 10:08 pm
Forum: General discussion
Topic: Next raspberry ethernet?
Replies: 34
Views: 1482

Re: Next raspberry ethernet?

If you have a full HD display but 2/3 of it is always black, do you call it fullHD? Just ask for a friend.. Yes. If it is a true HD display. It may be that the device driving it isn't capable of full HD, but that is not the point. (I'll skip the overscan issue here because that isn't "2/3 of it"). ...
by chwe
Mon Feb 11, 2019 4:59 pm
Forum: General discussion
Topic: Next raspberry ethernet?
Replies: 34
Views: 1482

Re: Next raspberry ethernet?

Getting Gigabit Networking on a Raspberry Pi 2, 3 and B+ tl;dr You can get Gigabit networking working on any current Raspberry Pi (A+, B+, Pi 2 model B, Pi 3 model B), and you can increase the throughput to at least 300+ Mbps (up from the standard 100 Mbps connection via built-in Ethernet). that's ...
by chwe
Mon Feb 11, 2019 3:44 pm
Forum: General discussion
Topic: install unrar nonfree on raspbian (Stretch)
Replies: 7
Views: 420

Re: install unrar nonfree on raspbian (Stretch)

deb http://raspbian.raspberrypi.org/raspbian/ stretch main contrib non-free rpi # Uncomment line below then 'apt-get update' to enable 'apt-get source' #deb-src http://raspbian.raspberrypi.org/raspbian/ stretch main contrib non-fre$ i do not understand what to do next. if i add the line cat /etc/ap...
by chwe
Mon Feb 11, 2019 3:33 pm
Forum: General discussion
Topic: Next raspberry ethernet?
Replies: 34
Views: 1482

Re: Next raspberry ethernet?

I should add a caveat. There are many imgs available for the Tinker, for my tests I was trying to keep the OSs as close as possible. Rasbian being a Debian branch, it seemed appropriate to put Debian on the Tinker. TinkerOS is actually a fork of Debian ARMHF developed by Asus :shock: TinkerOS is no...
by chwe
Fri Feb 08, 2019 2:11 pm
Forum: General discussion
Topic: We've opened a shop!
Replies: 62
Views: 2587

Re: We've opened a shop!

"Computer firm", honestly I don't think of Raspberry Pi as a computer firm. "Computer firm" to me seems like something huge, the only thing I can think of huge regarding Raspberry Pi is the number of products sold. The raspberry pi is the third best-selling computer of all time after the PC and the...
by chwe
Thu Feb 07, 2019 12:58 pm
Forum: General discussion
Topic: We've opened a shop!
Replies: 62
Views: 2587

Re: We've opened a shop!

rpdom wrote:
Thu Feb 07, 2019 11:55 am
Seriously? You think the only thing the RPF does is produce a few computers?
Not even that.. That's what RPT does... :lol:
by chwe
Sat Feb 02, 2019 12:02 am
Forum: General discussion
Topic: How many pieces of pi are too many?
Replies: 72
Views: 2217

Re: How many pieces of pi are too many?

ups somehow missed your post... No, I see no point in Node-Red. Why not just write Javascript? Or C++? It's easier. I have pretty much given up MQTT for NATS: https://nats.io/ everyone is free to use whatever she/he prefers.. Didn't know nats, looks for me quite similar to MQTT but if you prefer it....
by chwe
Fri Feb 01, 2019 10:11 pm
Forum: General discussion
Topic: How many pieces of pi are too many?
Replies: 72
Views: 2217

Re: How many pieces of pi are too many?

If you don't want to learn new things.. Which not everyone does, and those who do often don't have the luxury of time to invest to do so. Time is a precious commodity so there's often pressure to 'get it done', rather than to 'do it right'. Not doing it right is not necessarily wrong. "Good enough"...
by chwe
Fri Feb 01, 2019 7:00 pm
Forum: General discussion
Topic: How many pieces of pi are too many?
Replies: 72
Views: 2217

Re: How many pieces of pi are too many?

1) First I have to obtain an ESP. I may not know anything about them. Which means first I have to find out which one and where. Then order it, then wait to get it, then figure out how to use it. even adafruit sell ESPs in those days.. https://www.adafruit.com/?q=esp&p=1 otherwise, aliexpress is a g...
by chwe
Fri Feb 01, 2019 4:25 pm
Forum: General discussion
Topic: How many pieces of pi are too many?
Replies: 72
Views: 2217

Re: How many pieces of pi are too many?

Depends if you have/trust WiFi. Most of my Pi have more than one function. I don't want to have to learn a whole new way of doing things just for a simple job when I already have a system capable of doing it and much more. so loading micropython to an ESP combined with an mqtt broker is too much? :...
by chwe
Fri Feb 01, 2019 2:00 pm
Forum: General discussion
Topic: How many pieces of pi are too many?
Replies: 72
Views: 2217

Re: How many pieces of pi are too many?

How many pieces of pi are too many? each one which collects dust.. For me, it means currently one Pi1b and 2 zeros... And when each 'idea' for your house needs a new SBC you might do something wrong.. 7 temperature senders, 2 security cameras, telescope, ADSB receiver, MLAT receiver, 2 probe reques...
by chwe
Tue Jan 29, 2019 11:21 am
Forum: Off topic discussion
Topic: A step forward: LTE
Replies: 26
Views: 1917

Re: A step forward: LTE

what's the goal. having Kali Linux with an SBC... I don't know if it uses a linux kernel with a couple of unofficial drivers or many unofficial drivers or a android kernel ?! The case 1 is ok, the case 2 i dont know, the case 3 NO! Then there is another problem, that soc (MT6797X) is a bit old and ...
by chwe
Mon Jan 28, 2019 3:48 pm
Forum: Off topic discussion
Topic: A step forward: LTE
Replies: 26
Views: 1917

Re: A step forward: LTE

what's the goal. having Kali Linux with an SBC which has a cellular? Find a cellular stick which works and then debootstrap your own Kali.. armhf/arm64 packages are there - it's just a sort of debian so getting kali to run on random SBC isn't much an issue as long as someone got a debian running on ...

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