Dennis Lee Bieber  wrote:
> On Wed, 9 Sep 2020 12:01:57 -0700, Aioli  declaimed the
> following:
>
>
> >But now interested in Pi.
> >So recommendations for advanced hardware appreciated.
> >Not just the Pi, but other peripherals and hardware (cases etc).
> >Will probably build many different kinds of projects.
> >
>         Problem is: any reply to your "advanced hardware" and "peripherals"
is
> dependent upon WHAT you are building.
>
>         After all -- for someone wanting to replace a Windows desktop... An
> R-Pi 4B 8GB, an HDMI monitor, USB keyboard & mouse (I'd recommend saving a
> USB port by using something like a Logitech "Unifying" wireless keyboard
> and mouse), and a USB(3) disk drive (on which one mounts /home, /tmp, /var
> and a swap file -- all the stuff that gets lots of changes that would wear
> out a uSD card) qualifies, with some box to put the drive and R-Pi into...
>
>         For someone trying to build a programmable Christmas tree lighting
set,
> a couple of long strings of NeoPixel LEDs, a big power supply (the LEDs
> want power), almost any R-Pi with WiFi, and a case to hold the R-Pi and
> power supply -- and an ability to code a simple web server application for
> controlling the LED sequencer program. Connect to R-Pi over WiFi to access
> LED configuration using a browser in a phone or tablet.
>
>         If you are doing projects that require measuring analog data (an
> oscilloscope perhaps) you will need a dedicated multi-port ADC chip (the
> R-Pi does not have on-board ADC -- unlike the Beaglebone Black). You may
> also want multi-line PWM chips as the R-Pi is a bit limited in that aspect
> too (software PWM is rate limited, and CPU heavy)
>
... and if you want lots of digital and analogue i/o without adding
too many bits and pieces, get a BeagleBone Black!  :-)

(I have several Pis and BBBs, horses for courses)

--
Chris Green
·

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