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Sounds like you made the right move, man.
Jeremy Falcon
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ditto
"A little time, a little trouble, your better day"
Badfinger
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Mindblowing. How can they make the claim you went over your allowance, if they can't provide the figures used to make that assertion?
My ISP lets me view my stats in almost real-time, and download them to CSV files as often as I want. The figures aren't an exact match, but always very close to what my router is reporting for the WAN port.
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I once saw a report that showed my usage was "way over" my plan (GB), but the provider never flagged me ... so I never looked at that report again.
"Before entering on an understanding, I have meditated for a long time, and have foreseen what might happen. It is not genius which reveals to me suddenly, secretly, what I have to say or to do in a circumstance unexpected by other people; it is reflection, it is meditation." - Napoleon I
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I'm with a hosting provider (or rather, one of my clients is, but I manage everything) that provides "unlimited" storage. Which is good, because this client has a lot of large PDFs generated every day (several hundred), each containing a dozen or so hi-res images. Every day we get an email saying we have "exceeded our resource limits". First time I got this I (almost) panicked and contacted the hosting company about it. They assured me, "don't worry, there is no limit on your account. It's just that Plesk [the control panel they use] doesn't support unlimited storage so we had to put a limit in, and it will warn you each day". Which it has - every single day for the past three years. At least I know the server's up when I see that in my inbox each morning. 
But Plesk - seriously?? 
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It would be difficult for me to exceed my "unlimited" monthly allowance, but I'm elephanted if I could get my head round their "reasonable use" criteria.
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
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That's why I switched to a provider that offers unlimited.
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And what the ![Elephant | [mastadon]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/elephant.gif) is SLA?
M.D.V. 
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
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Service Level Agreement
I’ve given up trying to be calm. However, I am open to feeling slightly less agitated.
I’m begging you for the benefit of everyone, don’t be STUPID.
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Thank you
M.D.V. 
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
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The game is called Magicka 2; you cannot install it, without a spy-app that makes sure you do not cheat.
SLA? You sell a product. If the license is toxic, it doesn't run.
Bastard Programmer from Hell 
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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If they don't measure their SLA's - how do they know if they meet them?
Do they let you the organisation specify how you are going to measure the SLA's?
If not, I recommend this high technology device to help to determine if the service levels were met: Industry recognised SLA measurement device
Ask them: if you assert they did not make their SLA's what their process would be to determine that they did?
Otherwise - indefinite free service. 
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maybe the stepper has an intermittent short in it. sounds faulty in any case. The current draw should be stable under a constant load.
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix
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That was my first thought. Changed motors still does it, changed 4988 driver (could have been a fault) still does it but only with a scope probe, not multimeter or other implement only a scope probe (connected to a scope, not even selected channel, but connected).
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Wow. It almost sounds like maybe your scope is doing something to the signal. Could it be your scope is to blame?
ETA: My Salae was acting really strange one day, and I spent all day debugging because I couldn't figure out why my SPI signal was so off. It's still a mystery as the analyzer hasn't acted up since.
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix
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Don't really think so, a cheapo R&S Pro branded UniT model, about 700mV on the probe...
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Inductor or capacitor - I forget which.
I had a similar problem 20+ years ago: the board was working really weirdly so I stuck a scope on to look at what was happening and ... the problem went away. I talked it over with Tektronix, and (apart from their first suggestion which was "ship a scope with each unit?") they were very helpful. IIRC, it was the scope probe capacitance that was fixing it and adding a couple of pF to the line smoothed it all out and it worked faultlessly from then on (though it may have been a small inductor we needed to add, I can't remember and the H/W designer died a few years ago.)
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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I have been thinking that, I just try resoldering the connections to the module. Stupid thing is must be the capacitance as adding other probes or a screw driver doesn't do it (inductive, I think). It happens if I change the motor, the driver board.
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Quote: and the H/W designer died a few years ago.
Sorry, but that cracked me up. Feeling like the Bicentennial Man here: "Oh that guy that designed that system is long gone and the guy that took over is already retired too" 
forging iron and new ideas
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Andreas Saurwein wrote: "Oh that guy that designed that system is long gone and the guy that took over is already retired too"
I have not reached the 50s and I already have experienced something like that. 
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
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Ground through the scope? The ring of the probe BNC connector is connected to earth.
I'm skeptical of the tiny (pF) capacitance of a scope probe "fixing" this, though it's not out of the realm of possibility depending on what you're connected to.
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Dave Kreskowiak wrote: Ground through the scope
I would agree.
"the debugger doesn't tell me anything because this code compiles just fine" - random QA comment
"Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst
"I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle
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Do you have a cat? This is clearly a case where observation affects the observed.
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No Putty's involved, I'm not Griff!
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way. The current draw is all over the place, it will not move! stick a scope probe on the 
Proper Weird!