[TriEmbed] FXOS8700CQ EOL, last orders December of this year

Tue Jan 26 14:50:52 CST 2021

Pete,

It is weird that there are so few options for a chip with acceleration and
magnetometer in one package.

This is the best I have found thus far:
https://www.st.com/content/st_com/en/products/mems-and-sensors/e-compasses/ism303dac.html

They are giving a 10 year lifecycle guarantee!!

Thanks,

Chip

____________________________________
Chip McClelland
chip at mcclellands.org
919-624-5562

On January 26, 2021 at 3:39:50 PM, triembed-request at triembed.org (
triembed-request at triembed.org) wrote:

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Today's Topics:

1. FXOS8700CQ EOL, last orders December of this year (Pete Soper)
2. Re: ESP8266 Programming tip (John Vaughters)
3. Re: ESP32 Order (Huan Truong)
4. Re: ESP8266 Programming tip (Michael Monaghan)

----------------------------------------------------------------------

Message: 1
Date: Tue, 26 Jan 2021 14:22:18 -0500
From: Pete Soper <pete at soper.us>
To: Triangle Embedded Computing Discussion <TriEmbed at triembed.org>
Subject: [TriEmbed] FXOS8700CQ EOL, last orders December of this year
Message-ID: <0ab935f4-de6b-c211-b81d-13ffb26fb072 at soper.us>
Content-Type: text/plain; charset=utf-8; format=flowed

"no replacement planned". If anybody knows of a replacement that
supports vector magnitude interrupts I'd really love a pointer to it.
Thanks,
Pete

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwiRq_6knbruAhWKGVkFHSqhAqwQFjABegQIAhAC&url=https%3A%2F%2Fcommunity.nxp.com%2Fpwmxy87654%2Fattachments%2Fpwmxy87654%2Fsensors%2F6341%2F1%2F201014_NXP%2520MEMS%2520Sensor%2520Consolidation%2520Decision%2520-%2520C%2526I%2520Motion%2520Messaging%2520v3.pptx&usg=AOvVaw1V-Zlzzk2a20pOPU63oxpy

------------------------------

Message: 2
Date: Tue, 26 Jan 2021 19:45:08 +0000 (UTC)
From: John Vaughters <jvaughters04 at yahoo.com>
Cc: Triangle Embedded Interest Group <triembed at triembed.org>
Subject: Re: [TriEmbed] ESP8266 Programming tip
Message-ID: <1131170997.367828.1611690308662 at mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8

Carl,

I do not NEED the delay, I just need to read the A0 at 1 ms intervals. I
don't need to stop the processor for that, I need to code it responsibly if
I want it to work the best way I want. I was being lazy expecting my time
frame to be well within the parameters required for the desired end result.
And the solution I finally did does work, but I have now been motivated to
make it better.

Mike,

Good info thanks. I have not verified, but yes I am thinking I may have
violated the watch dog. I am not sure why you could not change a variable
if it is global and done fast. I also dug a little deeper and the ticker I
am using is not the same that you find in Arduino. The one I am using is
suggesting the flag concept as I pointed out in the first post and is
working and the idea you also reinforced. I guess in general it is the
simplest guarantee for accurate loop integrity. It definitely works quite
well. I have looked at the micro-python. I may try that when I get around
to the Robotics with the ESP32. That is very interesting for sure. I like
the REPL concept alot.

I can spend a little more time for a better solution. Dang it and I thought
I was done with this part. `,~)

Thanks,

John Vaughters

------------------------------

Message: 3
Date: Tue, 26 Jan 2021 12:01:27 -0800
From: Huan Truong <htruong at tnhh.net>
To: Michael Monaghan <mike at chipworks.net>
Cc: TriEmbed <triembed at triembed.org>
Subject: Re: [TriEmbed] ESP32 Order
Message-ID: <531AFD18-2B97-4064-A328-4376FF62E00B at tnhh.net>
Content-Type: text/plain; charset="utf-8"

I have 2 esp-s2 boards laying around so if someone wants something quickly,
I'm happy to send to you. I'm in the west coast so it will take a couple of
days.

Please excuse my typos, sent from phone.

On Jan 26, 2021, at 8:41 AM, Michael Monaghan via TriEmbed <
triembed at triembed.org> wrote:

?
Nick,

Please put me down for 5 of these. Do you Zelle, PayPal or GPay?

Mike

On Mon, Jan 25, 2021 at 7:22 PM Nick Edgington via TriEmbed <
triembed at triembed.org> wrote:
> I am planning to order some esp32 from China, intending to have them sent
DHL which mean they should be here in a couple of weeks (Estimated delivery
on 02/12). The units I am getting are the 16 MB as spec below. Complete
with SD card slot and battery charger.
>
> Base price is $6.50 shipping is $25 add $2.50 to the price if I order 10.
>
> If you are interested, contact me by Wednesday, the larger the order the
lower the divided shipping, Within reason you can pay me when they arrive.
>
> Nick
>
> ====================================================
> Espressif official ESP32-WROVER module
> The latest ESP32 version: REV1
> wireless online
> Bluetooth
> 16MB flash memory
> 8MB PSRAM
> Lithium battery interface, 500mA maximum charging current
>
> Support TF memory card
>
> With 3D wire
>
>
>
>
> _______________________________________________
> Triangle, NC Embedded Computing mailing list
>
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Message: 4
Date: Tue, 26 Jan 2021 15:38:59 -0500
From: Michael Monaghan <mike at chipworks.net>
To: Triangle Embedded Interest Group <triembed at triembed.org>
Subject: Re: [TriEmbed] ESP8266 Programming tip
Message-ID:
<CAGToJnbxnd8Ufh6gUZS0bTBe3pgLEt0EWRvNUALNzh=dJNvSrA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

John,

> I am not sure why you could not change a variable if it is global and
done fast.

Because we have no idea what state the variables were in when the service
routine was called. Were they being inspected by main code? Or modified?
Perhaps Garbage collection is in progress? Without a bit of blocking code
to demand a known state, we're flying blind.

> I may try that when I get around to the Robotics with the ESP32. That is
very interesting for sure. I like the REPL concept alot.
Robotics are on the wish list... I just have about 3 million lines of code
before I can take on another hobby.

Python is my go-to language. Only rarely do I have to use C++ to force the
solution.

Mike

On Tue, Jan 26, 2021 at 2:45 PM John Vaughters via TriEmbed <
triembed at triembed.org> wrote:

> Carl,
>
> I do not NEED the delay, I just need to read the A0 at 1 ms intervals. I
> don't need to stop the processor for that, I need to code it responsibly
if
> I want it to work the best way I want. I was being lazy expecting my time
> frame to be well within the parameters required for the desired end
result.
> And the solution I finally did does work, but I have now been motivated
to
> make it better.
>
> Mike,
>
> Good info thanks. I have not verified, but yes I am thinking I may have
> violated the watch dog. I am not sure why you could not change a variable
> if it is global and done fast. I also dug a little deeper and the ticker
I
> am using is not the same that you find in Arduino. The one I am using is
> suggesting the flag concept as I pointed out in the first post and is
> working and the idea you also reinforced. I guess in general it is the
> simplest guarantee for accurate loop integrity. It definitely works quite
> well. I have looked at the micro-python. I may try that when I get around
> to the Robotics with the ESP32. That is very interesting for sure. I like
> the REPL concept alot.
>
> I can spend a little more time for a better solution. Dang it and I
> thought I was done with this part. `,~)
>
> Thanks,
>
> John Vaughters
>
> _______________________________________________
> Triangle, NC Embedded Computing mailing list
>
> To post message: TriEmbed at triembed.org
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: http://TriEmbed.org
> To unsubscribe, click link and send a blank message: mailto:
> unsubscribe-TriEmbed at bitser.net?subject=unsubscribe
>
>
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