[Dprglist] New Raspberry Pi RP2040 boards

Thu Jan 21 08:34:04 PST 2021

Here is the MicroCenter product page. It has the pinout and other info.
Unfortunately, it is sold out at the moment.
https://www.microcenter.com/product/632771/raspberry-pi-fan-for-raspberry-pi-4b-official-case
Note:
that the product is listed under the wrong title.

Regards,
Doug P.

On Thu, Jan 21, 2021 at 10:30 AM Doug Paradis <paradug at gmail.com> wrote:

> -All,
>     Another article of interest on the Rpi pico. Cost is $4, and has micro
> python and C/C++ support.
>
> https://www.pcmag.com/news/4-raspberry-pi-pico-launches?utm_source=email&utm_campaign=whatsnewnow&utm_medium=title
>
> Regards,
> Doug P.
>
> On Thu, Jan 21, 2021 at 3:32 AM Murray Altheim via DPRGlist <
> dprglist at lists.dprg.org> wrote:
>
>> Summary: There are two new, small and low-cost Raspberry Pi
>> computer boards based on a new RP2040 chip (developed by the
>> Raspberry Pi Foundation), now or soon to be available, along with
>> a new line of accessories and carrier boards. There's also two
>> RP2040 boards from Adafruit using their Feather and ItsyBitsy
>> form factors.
>>
>> ----
>>
>> The RP2040 boards from Raspberry Pi are respectively called the Pico
>> and the Tiny2040 and are different from previous Raspberry Pis in that
>> they don't run a Linux operating system, they run either a single C/C+
>> or MicroPython program which is loaded (like an Arduino) over USB.
>>
>> These boards are considerably smaller and lighter than other Pis, and
>> rather than dual-row GPIO pins their IO pins are spread around the
>> perimeter of the board.
>>
>> The Pico is about the size of an Arduino Nano:
>>
>>    Raspberry Pi Pico
>>    https://shop.pimoroni.com/products/raspberry-pi-pico     £3.60
>>    https://www.adafruit.com/product/4883 (loose headers)    US$5.00
>>    https://www.adafruit.com/product/4864 (no headers)       US$4.00
>>
>> Pimoroni are releasing a series of support boards for the Pico, such
>> as:
>>
>>     Pico Explorer Base (LCD, mini breakboard, motor drivers, etc.
>>     kinda nice for a small robot)
>>     https://shop.pimoroni.com/products/pico-explorer-base    £22.20
>>
>>     Pico Breakout Garden Base
>>     https://shop.pimoroni.com/products/pico-breakout-garden-base   £12
>>
>> The latter provides 4 I2C and 2 SPI sockets for their Breakout Garden
>> series of sensors, displays, etc.
>>
>> The Tiny is about the size of a postage stamp, with 12 IO pins, 4 as
>> optional 12-bit ADC channels:
>>
>>    Tiny 2040
>>    https://shop.pimoroni.com/products/tiny-2040             £8.40
>>
>> [It's notably more expensive than the Pico.]
>>
>> Adafruit has also packaged the RP2040 in both their Feather and
>> ItsyBitsy form factors:
>>
>>    Adafruit Feather RP2040
>>    https://www.adafruit.com/product/4884                    NA (yet)
>>    Adafruit ItsyBitsy RP2040
>>    https://www.adafruit.com/product/4888                    NA (yet)
>>
>> Here's a description of the 2040 CPU:
>>
>>      About the RP2040
>>
>>      The RP2040 microcontroller is a dual core ARM Cortex M0+ running at
>>      up to 133Mhz. It bundles in 264kB of SRAM, 30 multifunction GPIO
>>      pins (including a four channel 12-bit ADC), a heap of standard
>>      peripherals (I2C, SPI, UART, PWM, clocks, etc), and USB support.
>>
>>     One very exciting feature of the RP2040 microcontroller are the
>>     programmable IOs which allow you to execute custom programs that
>>     can manipulate GPIO pins and transfer data between peripherals -
>>     they can offload tasks that require high data transfer rates or
>>     precise timing that traditionally would have required a lot of
>>     heavy lifting from the CPU.
>>
>> As alluded to in that last paragraph, I'll be curious to see how any
>> of these RP2040 boards can be used as a slave processor when connected
>> to a Raspberry Pi, a topic we've been discussing a fair bit lately. In
>> the SDK documentation there's sections on how to connect to an RP2040
>> board from a Raspberry Pi over USB or GPIO, and how to connect to a Mac
>> over USB. It looks like the GPIO connection is over UART.
>>
>> The Pimoroni Pico product page at:
>>
>>    https://shop.pimoroni.com/products/raspberry-pi-pico
>>
>> has a section at the bottom with links to some fairly extensive
>> documentation:
>>
>>    * Raspberry Pi Pico Datasheet - An RP2040-based microcontroller board
>>    * RP2040 Datasheet - A microcontroller by Raspberry Pi
>>    * Hardware design with the RP2040 - Using the RP2040 microcontroller
>>      to build boards and products
>>    * Getting Started with Raspberry Pi Pico - C/C++ development with
>>      the Pico and other RP2040-based microcontroller boards
>>    * Pico C/C++ SDK - Libraries and tools for C/C++ development on the
>>      RP2040 microcontroller
>>    * Pico Python SDK - A MicroPython environment for the RP2040
>>      microcontroller
>>
>> Quite exciting!
>>
>> Cheers,
>>
>> Murray
>>
>> [Legal Notice: I hold no fiduciary interest in Pimoroni, Adafruit,
>> foamtiles.com or any other electronics or foam tile wholesale or retail
>> establishment.]
>>
>> ...........................................................................
>> Murray Altheim <murray18 at altheim dot com>                       = =
>> ===
>> http://www.altheim.com/murray/                                     ===
>> ===
>>                                                                     = =
>> ===
>>      In the evening
>>      The rice leaves in the garden
>>      Rustle in the autumn wind
>>      That blows through my reed hut.
>>             -- Minamoto no Tsunenobu
>>
>>
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