I just received an advertising email from SparkFun. They sell the Pi Pico as well as 3 of their own variants with the RP2040 chip...
Thing Plus - https://www.sparkfun.com/products/17745 MicroMod - https://www.sparkfun.com/products/17720 Pro Micro - https://www.sparkfun.com/products/17717 I just noticed, they are for pre-order. -----Original Message----- From: Chris Albertson [mailto:albertson.ch...@gmail.com] Sent: Friday, 22 January 2021 4:05 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Rpi Pico On Thu, Jan 21, 2021 at 7:56 PM Dave Cole <linuxcncro...@gmail.com> wrote: > I was thinking multiple RPi Picos to one RPi4, but for just one, that is > probably the way to go. > The Pico is a dual-core M0. So it is faster than I had originally thought. Micro-Python is ported to it so it might be very easy for many people to program. I'm got my name in to be notified when they are back in stock. I still think USB is the simplest way to connect while experimenting. One advantage of USB is that you need USB to program the Pico. You would run the development system on the Pi4 and change the firmware by copying files or drag/drop. If the Pico is SPI connected then you need to hunt down a USB cable then walk out to the shop to change the firmware. > I'll try that first! > > The Pi Hat as the carrier board is also a good idea. > > On 1/21/2021 7:46 PM, Chris Albertson wrote: > > I'd bet SPI would work well but even easier would be to connect them to > the > > Pi4 with USB. Both sides have software that makes the USB look like a > > serial port and the physical connection is done with off the shelf cable. > > > > I've used M0 boards this way in the past and using USB lets you also cnet > > them to a Linux PC > > > > What I like about the Pico is that it can be SMT hand soldered. I can > make > > a simple passive carrier board that has connectors and it is not hard to > > hand solder 0.1 inch pitch. The carrier board could be a Pi-hat > > > > On Thu, Jan 21, 2021 at 4:30 PM Dave Cole <linuxcncro...@gmail.com> > wrote: > > > >> I wonder if these could act as SPI slaves to the RPI 4? > >> > >> I've been trying to buy two from Adafruit and they keep selling out and > >> then coming back in stock, and then selling out again! > >> > >> Dave > >> > >> On 1/21/2021 6:36 PM, andy pugh wrote: > >>> On Thu, 21 Jan 2021 at 21:52, Chris Albertson < > albertson.ch...@gmail.com> > >> wrote: > >>>> This is an STM32 microcontroller. > >>> Are you sure? It is an ARM Cortex M0, like the STM32, but is it made by > >> ST? > >> > >> _______________________________________________ > >> Emc-users mailing list > >> Emc-users@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/emc-users > >> > > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
