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<p>I now see there is an Arduino board using that chip and possibly
support for the original using Arduino IDE. <br>
</p>
<div class="moz-signature"><font face="Comic Sans MS"
color="#000080"> <br>
-73 - <br>
<b>Rud Merriam K5RUD</b> <br>
<a href="http://mysticlakesoftware.com/"> <i>Mystic Lake
Software</i> </a> <br>
<br>
</font>
</div>
<div class="moz-cite-prefix">On 1/21/21 1:02 PM, Doug Paradis wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOdUW+bw5CpCCwu5p3k-9MASm9LMrk0-AnuU5zZ=bMprhbOJNg@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Rud,
<div> Interesting observation, I suspect that they are also
looking at the microPython market. In terms of the Arduino
market, they may be positioning to join in the current
transition to faster processors (like blue pill, teensy,
ESP32, etc). </div>
<div>Regards,</div>
<div>Doug P.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Jan 21, 2021 at 11:50
AM Rud Merriam via DPRGlist <<a
href="mailto:dprglist@lists.dprg.org" target="_blank"
moz-do-not-send="true">dprglist@lists.dprg.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Looks like they are trying to compete with the Arduino
market.<br>
</p>
<div><font face="Comic Sans MS" color="#000080"> <br>
-73 - <br>
<b>Rud Merriam K5RUD</b> <br>
<a href="http://mysticlakesoftware.com/" target="_blank"
moz-do-not-send="true"> <i>Mystic Lake Software</i> </a>
<br>
<br>
</font> </div>
<div>On 1/21/21 10:30 AM, Doug Paradis via DPRGlist wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">-All,
<div> Another article of interest on the Rpi pico.
Cost is $4, and has micro python and C/C++ support.</div>
<div><a
href="https://www.pcmag.com/news/4-raspberry-pi-pico-launches?utm_source=email&utm_campaign=whatsnewnow&utm_medium=title"
target="_blank" moz-do-not-send="true">https://www.pcmag.com/news/4-raspberry-pi-pico-launches?utm_source=email&utm_campaign=whatsnewnow&utm_medium=title</a><br>
</div>
<div><br>
</div>
<div>Regards,</div>
<div>Doug P.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Jan 21, 2021
at 3:32 AM Murray Altheim via DPRGlist <<a
href="mailto:dprglist@lists.dprg.org"
target="_blank" moz-do-not-send="true">dprglist@lists.dprg.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px
0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Summary: There are
two new, small and low-cost Raspberry Pi<br>
computer boards based on a new RP2040 chip (developed
by the<br>
Raspberry Pi Foundation), now or soon to be available,
along with<br>
a new line of accessories and carrier boards. There's
also two<br>
RP2040 boards from Adafruit using their Feather and
ItsyBitsy<br>
form factors.<br>
<br>
----<br>
<br>
The RP2040 boards from Raspberry Pi are respectively
called the Pico<br>
and the Tiny2040 and are different from previous
Raspberry Pis in that<br>
they don't run a Linux operating system, they run
either a single C/C+<br>
or MicroPython program which is loaded (like an
Arduino) over USB.<br>
<br>
These boards are considerably smaller and lighter than
other Pis, and<br>
rather than dual-row GPIO pins their IO pins are
spread around the<br>
perimeter of the board.<br>
<br>
The Pico is about the size of an Arduino Nano:<br>
<br>
Raspberry Pi Pico<br>
<a
href="https://shop.pimoroni.com/products/raspberry-pi-pico"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://shop.pimoroni.com/products/raspberry-pi-pico</a>
£3.60<br>
<a href="https://www.adafruit.com/product/4883"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://www.adafruit.com/product/4883</a>
(loose headers) US$5.00<br>
<a href="https://www.adafruit.com/product/4864"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://www.adafruit.com/product/4864</a>
(no headers) US$4.00<br>
<br>
Pimoroni are releasing a series of support boards for
the Pico, such<br>
as:<br>
<br>
Pico Explorer Base (LCD, mini breakboard, motor
drivers, etc.<br>
kinda nice for a small robot)<br>
<a
href="https://shop.pimoroni.com/products/pico-explorer-base"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://shop.pimoroni.com/products/pico-explorer-base</a>
£22.20<br>
<br>
Pico Breakout Garden Base<br>
<a
href="https://shop.pimoroni.com/products/pico-breakout-garden-base"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://shop.pimoroni.com/products/pico-breakout-garden-base</a>
£12<br>
<br>
The latter provides 4 I2C and 2 SPI sockets for their
Breakout Garden<br>
series of sensors, displays, etc.<br>
<br>
The Tiny is about the size of a postage stamp, with 12
IO pins, 4 as<br>
optional 12-bit ADC channels:<br>
<br>
Tiny 2040<br>
<a
href="https://shop.pimoroni.com/products/tiny-2040"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://shop.pimoroni.com/products/tiny-2040</a>
£8.40<br>
<br>
[It's notably more expensive than the Pico.]<br>
<br>
Adafruit has also packaged the RP2040 in both their
Feather and<br>
ItsyBitsy form factors:<br>
<br>
Adafruit Feather RP2040<br>
<a href="https://www.adafruit.com/product/4884"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://www.adafruit.com/product/4884</a>
NA (yet)<br>
Adafruit ItsyBitsy RP2040<br>
<a href="https://www.adafruit.com/product/4888"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://www.adafruit.com/product/4888</a>
NA (yet)<br>
<br>
Here's a description of the 2040 CPU:<br>
<br>
About the RP2040<br>
<br>
The RP2040 microcontroller is a dual core ARM
Cortex M0+ running at<br>
up to 133Mhz. It bundles in 264kB of SRAM, 30
multifunction GPIO<br>
pins (including a four channel 12-bit ADC), a
heap of standard<br>
peripherals (I2C, SPI, UART, PWM, clocks, etc),
and USB support.<br>
<br>
One very exciting feature of the RP2040
microcontroller are the<br>
programmable IOs which allow you to execute custom
programs that<br>
can manipulate GPIO pins and transfer data between
peripherals -<br>
they can offload tasks that require high data
transfer rates or<br>
precise timing that traditionally would have
required a lot of<br>
heavy lifting from the CPU.<br>
<br>
As alluded to in that last paragraph, I'll be curious
to see how any<br>
of these RP2040 boards can be used as a slave
processor when connected<br>
to a Raspberry Pi, a topic we've been discussing a
fair bit lately. In<br>
the SDK documentation there's sections on how to
connect to an RP2040<br>
board from a Raspberry Pi over USB or GPIO, and how to
connect to a Mac<br>
over USB. It looks like the GPIO connection is over
UART.<br>
<br>
The Pimoroni Pico product page at:<br>
<br>
<a
href="https://shop.pimoroni.com/products/raspberry-pi-pico"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://shop.pimoroni.com/products/raspberry-pi-pico</a><br>
<br>
has a section at the bottom with links to some fairly
extensive<br>
documentation:<br>
<br>
* Raspberry Pi Pico Datasheet - An RP2040-based
microcontroller board<br>
* RP2040 Datasheet - A microcontroller by Raspberry
Pi<br>
* Hardware design with the RP2040 - Using the
RP2040 microcontroller<br>
to build boards and products<br>
* Getting Started with Raspberry Pi Pico - C/C++
development with<br>
the Pico and other RP2040-based microcontroller
boards<br>
* Pico C/C++ SDK - Libraries and tools for C/C++
development on the<br>
RP2040 microcontroller<br>
* Pico Python SDK - A MicroPython environment for
the RP2040<br>
microcontroller<br>
<br>
Quite exciting!<br>
<br>
Cheers,<br>
<br>
Murray<br>
<br>
[Legal Notice: I hold no fiduciary interest in
Pimoroni, Adafruit,<br>
<a href="http://foamtiles.com" rel="noreferrer"
target="_blank" moz-do-not-send="true">foamtiles.com</a>
or any other electronics or foam tile wholesale or
retail<br>
establishment.]<br>
...........................................................................<br>
Murray Altheim <murray18 at altheim dot com>
= = ===<br>
<a href="http://www.altheim.com/murray/"
rel="noreferrer" target="_blank"
moz-do-not-send="true">http://www.altheim.com/murray/</a>
=== ===<br>
= = ===<br>
In the evening<br>
The rice leaves in the garden<br>
Rustle in the autumn wind<br>
That blows through my reed hut.<br>
-- Minamoto no Tsunenobu<br>
<br>
<br>
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