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by RogerClark
Wed Mar 22, 2017 11:26 pm
Forum: General discussion
Topic: Analog Pin Numbering
Replies: 1
Views: 14

Re: Analog Pi Numbering

The problem with numbering pins in this way, is that none of the physical hardware is marked with those numbers. Most boards are labelled with the official STM names for the pins e.g. PB5 The Maple mini just has pin numbers. If there was a board which specifically had those pin names on its silkscre...
by RogerClark
Wed Mar 22, 2017 9:45 pm
Forum: General discussion
Topic: STM32F3 Discovery board support
Replies: 5
Views: 50

Re: STM32F3 Discovery board support

I dont know if you will be able to simply take F1 libraries and modify them. The F3 core is only part of the repo to save it from being lost. I forget who ported the original LIbmaple core to F3, but they abandoned it. A load of work has gone into the F1 and some work into the F4 over the last 2 yea...
by RogerClark
Wed Mar 22, 2017 9:38 pm
Forum: All other boards
Topic: news: Arduino STAR OTTO development board
Replies: 123
Views: 8149

Re: news: Arduino STAR OTTO development board

Did anyone else notice the connectors on the underside of the board? It would need to come with pillars, otherwise it will not rest flat on a bench. Shame the video didnt have any commentry. I also presume they are still using a modified version of libmaple as their core, because AFIK STM have not f...
by RogerClark
Wed Mar 22, 2017 6:59 am
Forum: General discussion
Topic: Need advise on logic analyser
Replies: 17
Views: 210

Re: Need advise on logic analyser

I have a logic-8 and logic-16 (clones), and the 16 only works at 100Mhz if you have 2 channels It drops to 50Mhz for 3 or 4 channels. I think it drops to 25Mhz if you have more than 4 channels (though I can't totally remember) If you want to look at SPI then 4 channels should be enough, even if you ...
by RogerClark
Sat Mar 18, 2017 7:53 pm
Forum: Welcome & FAQs
Topic: Hello from Croatia
Replies: 1
Views: 46

Re: Hello from Croatia

Hi

If you have used the AVR Arduino before, the transition should not be difficult.

There are some common problems which people encounter, so please take a look at the FAQ thread.
Also we have a small wiki. wiki.stm32duino.com that has useful information.
by RogerClark
Sat Mar 18, 2017 7:50 pm
Forum: Off topic
Topic: Back port to Arduino
Replies: 4
Views: 57

Re: Back port to Arduino

Why are you using a nano for the other version. There is virtually no cost saving.

I now only use AVR arduinos if I need 5V signals or if some library is far to hard to port to STM32.

Edit.

Porting to AVR is probably harder than porting from AVR
by RogerClark
Sat Mar 18, 2017 7:46 pm
Forum: Projects
Topic: In car multigauge
Replies: 128
Views: 1673

Re: In car multigauge

Ok.

I wil take a phpto when I get a free 10 mins;-)
by RogerClark
Sat Mar 18, 2017 5:19 am
Forum: Projects
Topic: In car multigauge
Replies: 128
Views: 1673

Re: In car multigauge

My Subaru is about 12 years old, but apparently it does support OBD.

I just looked, and it has something plugged into the OBD port with a wire between 2 of the pins.
But I've no idea what that's for.
by RogerClark
Fri Mar 17, 2017 9:08 pm
Forum: STLink
Topic: Mini ST-link V2 current?
Replies: 2
Views: 64

Re: Mini ST-link V2 current?

running the BluePill on its own should be Ok. I have done that, a few times. But dont put any more load. The regulators on all these devices, including the BluePill are known to be problematic and some people have had them go off like firecrackers. If in doubt power the BP and STlink from Usb and jo...
by RogerClark
Fri Mar 17, 2017 8:48 pm
Forum: Projects
Topic: In car multigauge
Replies: 128
Views: 1673

Re: In car multigauge

Thanks for the details about the ELM327 OBD.

Looks like there are loads of differnt types available.

I will probably buy one of the larger ones. Not sure whether to get USB or Bluetooth, but I would rather have one I can take apart, and separate the Bluetooth or USB comms from the OBD interface

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