Search found 1582 matches

by ahull
Mon Sep 25, 2017 8:22 pm
Forum: General discussion
Topic: Dhrystone and Whetstone Benchmarks for STM32F103
Replies: 173
Views: 11076

Re: Dhrystone and Whetstone Benchmarks for STM32F103

That board has its own thread here... ->viewtopic.php?t=1276
by ahull
Mon Sep 25, 2017 8:10 pm
Forum: Builds and Announcements
Topic: New registratiion rules to reduce bot registration
Replies: 8
Views: 167

Re: New registratiion rules to reduce bot registration

I'm not sure how reliable the geo-location results are likely to be. My ISP thinks I'm in Bath. :lol: You might think they would be slightly closer, since they do actually manage to send me a bill every month to the correct address. I guess they did actually manage to get the correct hemisphere, if ...
by ahull
Mon Sep 25, 2017 5:04 pm
Forum: Off topic
Topic: Counterfeit F103s
Replies: 24
Views: 508

Re: Counterfeit F103s

I would think it unlikely that the STM32F103XXX that we see are clones or copies, since that would imply some pretty sophisticated entity had cloned them. However they might conceivably be "recovered" in some "hot wok" chip recovery enterprise in the back streets, from some common consumer grade pro...
by ahull
Mon Sep 18, 2017 3:53 pm
Forum: Off topic
Topic: "New" "Multimeter"
Replies: 6
Views: 115

Re: "New" "Multimeter"

@Pito - a mate of mine at school had an Avometer (An ex/surplus Post Office Telephones model 8 if I remember correctly), but that was out of my price range at the time. They are now worth more than they were then. Perhaps I should have invested in old Avometers, couldn't have done any worse than my ...
by ahull
Mon Sep 18, 2017 3:44 pm
Forum: Off topic
Topic: "New" "Multimeter"
Replies: 6
Views: 115

Re: "New" "Multimeter"

The first multimeter I had, was a made in china number from the late 1970s, the strange thing is you can still pick up an almost identical device today. http://i.ebayimg.com/images/g/ueoAAOSwNw5ZicYq/s-l1600.jpg They appear to be even cheaper now than they were when I bought mine (and probably just ...
by ahull
Mon Sep 18, 2017 2:19 pm
Forum: Off topic
Topic: "New" "Multimeter"
Replies: 6
Views: 115

"New" "Multimeter"

OK Its not new, since it was produced in 1944, and describing it as a "multi-meter" is a slight exaggeration as it only has two ranges, 0 to 250V DC and 0 to 15V DC. I saw it lying in a box of junk at a car boot sale, and decided it was worth a quid, so I now have yet another multimeter. https://lh3...
by ahull
Sat Sep 16, 2017 7:53 pm
Forum: Ideas & suggestions
Topic: Differential ADC (ADC1-ADC2)
Replies: 14
Views: 319

Re: Differential ADC (ADC1-ADC2)

I wonder how "white/pink" the noise is. Given that most of it is likely to originate from the digital domain I suspect it pretty non-linear, and it may be possible to suppress it to some degree if we know what sort of spectrum it has.
by ahull
Thu Sep 14, 2017 12:15 am
Forum: Projects
Topic: Repair DIBAL M350 by using STM32F103
Replies: 2
Views: 119

Re: Repair DIBAL M350 by using STM32F103

RogerClark wrote:
Wed Sep 13, 2017 10:03 pm
Very cool...

Thanks for sharing..

(Its possibly something Hackaday would be interested in)
+1 Definitely something Hackaday would be interested in.
by ahull
Fri Sep 08, 2017 9:02 pm
Forum: Code snipplets
Topic: 100 kHz PWM signal with complementary signal
Replies: 6
Views: 188

Re: 100 kHz PWM signal with complementary signal

That looks like yet another neat trick I wasn't previously aware of. Thanks for sharing. :D