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by prodata
Tue Jun 30, 2020 9:01 am
Forum: General discussion
Topic: Raspberry Pi integrated storage
Replies: 59
Views: 2236

Re: Raspberry Pi integrated storage

SD cards do not use much space in comparison to other computer storage drives. USB drives stick out of the USB ports. M.2 storage drives are long, and rectangular. A 2.5 in. solid state drive is larger than the Raspberry Pi computer in length, and width. No one is telling you how to use the Raspber...
by prodata
Sat Jun 27, 2020 10:29 am
Forum: General discussion
Topic: Raspberry Pi integrated storage
Replies: 59
Views: 2236

Re: Raspberry Pi integrated storage

It wouldn't just be a simple design/PCB change. Where would you connect the M.2 interface to? It's well outside any technical expertise I might have, but doesn't the M.2 specification support USB3 as one interface option? Plus anything connected that way wouldn't be any faster than the existing USB...
by prodata
Sat Jun 27, 2020 8:28 am
Forum: General discussion
Topic: Raspberry Pi integrated storage
Replies: 59
Views: 2236

Re: Raspberry Pi integrated storage

There is already diversity in the Pi range nowadays, most obviously with the choice of Pi4 RAM, with the 8GB version roughly doubling the cost of the base version. (And also leaving aside the Pi0 both vanilla and in its W and WH variants.) So the threshold of providing extra features at extra cost h...
by prodata
Fri Jun 19, 2020 10:10 am
Forum: General discussion
Topic: Can anyone teach me how to add SSD to Pi4?
Replies: 9
Views: 698

Re: Can anyone teach me how to add SSD to Pi4?

I guess all that's missing now is a case that allows some format of SSD (eg a 2.5" internal drive) to be fitted along with the Pi. Having the SSD as a separate box and on a cable just isn't as neat as everything in one box/case. Perhaps this should fit the SSD under the Pi (or maybe vertically) give...
by prodata
Sat Jun 13, 2020 9:43 am
Forum: General discussion
Topic: Storage recommendations
Replies: 10
Views: 500

Re: Storage recommendations

Thanks for the replies - genuinely appreciated. But unfortunately this is a real issue, albeit one that I suspect lies outside typical Pi usage. There is experience with comparable systems where a significant % even of good-quality (probably TLC but definitely not SLC or even binned MLC) USB sticks ...
by prodata
Fri Jun 12, 2020 12:51 pm
Forum: General discussion
Topic: Storage recommendations
Replies: 10
Views: 500

Storage recommendations

Anyone have any comments please on recommended SD cards and/or USB sticks for use with a Pi in a dedicated application running 24/7/365 and appending a tiny amount (say 100-200 bytes) of new data to storage eg every minute (so say ca 50-100 MB/year). Happy to take it as read that: 1. All flash drive...
by prodata
Thu Jun 11, 2020 2:28 pm
Forum: Off topic discussion
Topic: Animal question
Replies: 21
Views: 1906

Animal question

OK, a spot of semi-lockdown fun:

If the Raspberry Pi were an animal, which animal would it be? (Bonus points if you can say why!)

A starter: Perhaps a chameleon - because it can turn up in so many guises - functions, case shapes etc etc.
by prodata
Thu Oct 17, 2019 3:01 pm
Forum: Automation, sensing and robotics
Topic: Meteo-Pi now available
Replies: 0
Views: 1156

Meteo-Pi now available

Appreciate that this is more of a hobbyist/DIY forum than for commercial products but, for anyone that might be interested, we're now offering the Meteo-Pi product. Meteo-Pi is a new adapter + µHAT for connecting the console from a Davis weather station direct to a Pi. (For those unfamiliar with the...
by prodata
Mon Oct 07, 2019 2:21 pm
Forum: Off topic discussion
Topic: Voltage conventions
Replies: 6
Views: 2651

Re: Voltage conventions

OK, thanks for the reply. That was my working assumption but it's good to have agreement from someone else. Strangely, the data sheet doesn't seem to say AFAICS, which is why I was starting to think it must be such an obvious convention that they didn't need to restate it explicitly!
by prodata
Mon Oct 07, 2019 12:25 pm
Forum: Off topic discussion
Topic: Voltage conventions
Replies: 6
Views: 2651

Voltage conventions

Sorry, nothing directly to do with a Pi but a simple question and hopefully someone here might know: I'm trying to set up a 6v ==> 12v DCDC converter (Pololu U3V50F12) for a project - the 6v is sourced from a solar PSU that contains a 6v Lead-acid battery. The input and output connections are GND an...
by prodata
Sun Aug 11, 2019 8:03 am
Forum: Automation, sensing and robotics
Topic: Anyone interested in testing a new µHAT for Davis stations
Replies: 8
Views: 1844

Re: Anyone interested in testing a new µHAT for Davis stations

If the uHat can work with my old Weather Monitor II, I'd love to try this out! How do I get more info? No, sorry. The adapter pinout is quite different on the old WMII-type models. Remember that they were effectively superseded by the Vantage models almost 15 years ago now and haven't been availabl...
by prodata
Sat Aug 10, 2019 4:23 pm
Forum: Automation, sensing and robotics
Topic: Anyone interested in testing a new µHAT for Davis stations
Replies: 8
Views: 1844

Re: Anyone interested in testing a new µHAT for Davis stations

How much data can it store ?, and assuming I set the Davis to take readings every 10 minutes how long can it log for without being read from ? I'd need to double-check, but AFAIK storage is the same as a regular logger, ie 2560 records or somewhere around 17 days @ 10min interval. But if you have a...
by prodata
Sat Aug 10, 2019 3:55 pm
Forum: Automation, sensing and robotics
Topic: Anyone interested in testing a new µHAT for Davis stations
Replies: 8
Views: 1844

Re: Anyone interested in testing a new µHAT for Davis stations

OK, further clarification: Meteo-Pi is just hardware providing a UART input into the Pi with all the standard logger features, ie LOOP & LOOP2 real-time data, archive data, logging (if the Pi was offline for any reason) etc. So as long as any software can accept the standard Davis data feeds from a ...
by prodata
Sat Aug 10, 2019 3:23 pm
Forum: Automation, sensing and robotics
Topic: Anyone interested in testing a new µHAT for Davis stations
Replies: 8
Views: 1844

Re: Anyone interested in testing a new µHAT for Davis stations

Well TBH this probably isn't for users who already have a logger (and who aren't having any USB issues). It's more for new users or those without a logger who might be interested in a lower-cost alternative to a standard logger. But there's a draft web page with some further info at: https://www.wea...
by prodata
Sat Aug 10, 2019 10:50 am
Forum: Automation, sensing and robotics
Topic: Anyone interested in testing a new µHAT for Davis stations
Replies: 8
Views: 1844

Anyone interested in testing a new µHAT for Davis stations

A long shot I know because this is probably not the right audience, but let me just ask anyway: We have a new µHAT in late development for connecting a the console from a Davis weather station direct to a Pi. (For those unfamiliar with these products, Davis is the market leading brand worldwide for ...
by prodata
Mon Jun 24, 2019 11:33 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 945
Views: 152387

Re: Raspberry Pi 4 Thread - general discussion

My main comment is less about the new hardware than to hope that the advent of USB3 might encourage case or HAT designers to offer something that would allow eg an M.2 SSD to be integrated within footprint of the Pi (I guess a 180°USB adapter would be unavoidable). It's immediately more clumsy to ha...
by prodata
Thu Jun 13, 2019 3:05 pm
Forum: Beginners
Topic: Troubleshooting 'wlan0 not associated'
Replies: 4
Views: 494

Re: Troubleshooting 'wlan0 not associated'

Thanks for all the suggestions - I'm investigating... But starting with a fresh Stretch download - one or two oddities in the Pi's behaviour - no obvious sign of corruption in the previous download but perhaps best to try again.

Hopefully VSC behaves as a text editor?
by prodata
Thu Jun 13, 2019 12:42 pm
Forum: Beginners
Topic: Troubleshooting 'wlan0 not associated'
Replies: 4
Views: 494

Troubleshooting 'wlan0 not associated'

Appreciate this is a (very) well trodden path but struggling with a failure to connect to WiFi with a Pi0W and also 3B+ & without cabled Ethernet being available and would appreciate any up-to-date hints fpr troubleshooting. I have one Pi0W happily talking to the WiFi network. Then made another coup...
by prodata
Tue Jun 11, 2019 4:58 pm
Forum: General discussion
Topic: Move a headless Pi0W to a new WiFi network - how?
Replies: 4
Views: 700

Re: Move a headless Pi0W to a new WiFi network - how?

Thanks for the suggestions. It does appear that Raspbian looks for a wpa_supplicant.conf file in the boot/root each time it boots. And if it finds one then simply overwrites the existing wpa_supplicant.conf file. So it's actually a simple matter to update the network parameters on a headless Pi0W. I...
by prodata
Tue Jun 11, 2019 2:38 pm
Forum: General discussion
Topic: Move a headless Pi0W to a new WiFi network - how?
Replies: 4
Views: 700

Move a headless Pi0W to a new WiFi network - how?

I've got stuck trying to move a headless Pi0W between WiFi networks (home and office). I originally placed (under Windows) the wpa_supplicant.conf file in the SD card boot/root and all was fine post-first-boot. Then wanted to move the Pi to my office network, so edited the /etc/wpa_supplicant/wpa_su...
by prodata
Thu May 23, 2019 11:43 am
Forum: General discussion
Topic: PiBow case screws
Replies: 13
Views: 1326

Re: PiBow case screws

I'm sure this is a well-trodden path and described many times before but here's the solution I arrived at with the PiBow case to cope with an overheight HAT. pi_case_230519c.jpg The idea is very simply to add a threaded standoff between the top layer and the one below. It's maybe not quite as elegan...
by prodata
Fri May 17, 2019 6:57 pm
Forum: General discussion
Topic: PiBow case screws
Replies: 13
Views: 1326

Re: PiBow case screws

Hmm, interestingly (and rather frustratingly) M3 steel machine screws won't fit! At a guess their diameter is only eg 0.1mm too much - they will screw through with a little effort but not simply push through, which isn't good enough to use. Actually the holes in the top cover ARE wide enough but not...
by prodata
Fri May 17, 2019 11:45 am
Forum: General discussion
Topic: PiBow case screws
Replies: 13
Views: 1326

Re: PiBow case screws

Thanks everyone for the super-prompt responses. Sounds like M3 should fit the bill fine. I'm guessing that bright steel machine screws are going to be more readily available in a range of lengths than nylon at my local hardware store - can't see any obvious reason not to use those and possibly just ...
by prodata
Fri May 17, 2019 11:07 am
Forum: General discussion
Topic: PiBow case screws
Replies: 13
Views: 1326

PiBow case screws

Anyone happen to know the size of the PiBow case screws please? I'm guessing they're all the same diameter but this is for a 3B+ Rainbow case if it makes any difference. Thought they were M4 to start with but that looks a bit big now so maybe M3 (unless they're an odd size like M2.5), They're a bit ...
by prodata
Sun Apr 07, 2019 9:54 am
Forum: General discussion
Topic: anemometer - how to 'average' readings
Replies: 17
Views: 1756

Re: anemometer - how to 'average' readings

It all seems a bit moot as the input times don't actually reflect the rotation time of the anemometer. Not 100% sure what you mean. In most simple/inexpensive/non-ultrasonic anemometers the number of rotations of the cups is counted, not the time of rotation. The Davis ones for example are designed...

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