Uncle Andrew.. how come we have a $2 multi MHz board?...

Anything not related to STM32
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ahull
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Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by ahull » Mon Nov 06, 2017 5:10 pm

A little bit of ARM history, and a small insight in to the various flavours of ARM processors, Thumb instructions and all the other quirks of the beast.

https://www.youtube.com/watch?v=jhwwrSaHdh8



https://www.youtube.com/watch?v=re5xAqgKqc0



https://www.youtube.com/watch?v=_VYxIaw1kBU

- Andy Hull -

ag123
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Re: Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by ag123 » Mon Nov 13, 2017 12:43 pm

the story goes long ago when the first gsm mobile phone start flying off the shelves nokia , erisson become the global phone companies and the chip happens to be https://wikivisually.com/wiki/ARM7TDMI
today a similarly improved version becomes stm32 and runs the blue pill & maple mini
:lol:

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zoomx
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Re: Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by zoomx » Mon Nov 13, 2017 2:34 pm

I remember Acorn and their BBC computer.

ag123
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Re: Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by ag123 » Mon Nov 13, 2017 2:48 pm

i used to think can't the nokia phone (with arm7tdmi) do anything else? today that 'wish' comes true with the advent of arduino and stm32duino, and the huge breakouts market that little stm32 and other mcus really do 'everything else'

a mouse optical sensor used to be just that a mouse, but today it detect counterfeit euros :lol:
http://www.mdpi.com/1424-8220/9/9/7083/pdf

dannyf
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Re: Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by dannyf » Mon Nov 13, 2017 9:05 pm

The opposite of that question would have been a lot more interesting:

Can today's smartphones be made to do something else? Like reading the input from an opamp, or lighting up a led string, ...

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Re: Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by RogerClark » Mon Nov 13, 2017 10:07 pm

dannyf wrote:
Mon Nov 13, 2017 9:05 pm
The opposite of that question would have been a lot more interesting:

Can today's smartphones be made to do something else? Like reading the input from an opamp, or lighting up a led string, ...
Unfortunately a few people (me included) and I think Ray, have tried to re-purpose old android phones or cheap tablets, but without any luck

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Re: Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by Pito » Mon Nov 13, 2017 10:47 pm

Can today's smartphones be made to do something else?
You may try with SMTH Challenge..
Pukao Hats Cleaning Services Ltd.

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zoomx
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Re: Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by zoomx » Tue Nov 14, 2017 8:00 am

Sometimes I used some old smartphones as a timelapse cameras (using 24/7 Timelapse app) and ip cameras.

There are some educational post about using old smartphones as datalogger for physics acceleration experiments.

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ahull
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Re: Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by ahull » Tue Nov 14, 2017 2:04 pm

.. and of course old (ARM based) Android phones can be used as crude oscilloscopes, and fancy calculators.. and controllers for ESP wifi enabled gadgets, and as signal generators, and musical instrument tuners, and metronomes... and... GPS loggers .. and remote voice bugs...
- Andy Hull -

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mrburnette
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Re: Uncle Andrew.. how come we have a $2 multi MHz board?...

Post by mrburnette » Tue Nov 14, 2017 2:23 pm

RogerClark wrote:
Mon Nov 13, 2017 10:07 pm
dannyf wrote:
Mon Nov 13, 2017 9:05 pm
The opposite of that question would have been a lot more interesting:

Can today's smartphones be made to do something else? Like reading the input from an opamp, or lighting up a led string, ...
Unfortunately a few people (me included) and I think Ray, have tried to re-purpose old android phones or cheap tablets, but without any luck
Definitely correct a couple of years back, but today I find that my Samsung phone with bluetooth and WiFi is a near ideal terminal: SSH into my ESP32, my RPi and even use VNC to get a nice remote GUI. Others have reported decent results with the MIT Android app development tool to create custom apps to interact with their IoT.

Nothing stays the same ... we must periodically go back and revisit past failures in light of new tools.

Ray

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