Henri Derksen wrote on 1/18/2018 11:18 PM:
> Hello David,
>
> JF>>> The problem is that, without the hub, I cannot connect both.
>
> Yes you can, with a wireless keyboard and mouse, e.g. my Logitech MK220
> does work good with my Pi 3B.
> It has an USB2 2.4 GHz dongle for both keyboard and mouse (No BT).
> The Pi Zero W has both WiFi and Blue Tooth, so that can be used too for human
> input devices.
>
> Does someone know a good BT keyboard and mouse combination that works with
both
> Raspbian Linux and RISC OS with a Pi 3B of even Zero W?

"Good" and Bluetooth don't go together.  I bought a Bluetooth mouse just so
I wouldn't need to deal with a dongle.  It sucks just like every other
Bluetooth device I've ever tried to connect to the PC.  When anything on the
computer hits the hard drive the BT mouse will stumble and stutter.  I can
use the same mouse with the dongle and it doesn't do that unless the entire
computer is hosed.

My BT earpiece on my phone works ok.  I've never had any other piece of BT
gear work worth a damn on a PC and that includes three PCs and three OS.

The Logitech dongles are all multi device, keyboard and mouse, so once you
have one Logitech dongle it works for all their devices.  They aren't budget
priced, but they work... until they don't anymore.  I've gone through a
number of Logitech mice and am back with the budget mice because of the
pricing.

> The low price of the Pi Zero flows away, because of the costs of all the
> conversion cables to connect it to the outside world,
> i.e. micro HDMI to HDMI, micro USB2 to/from normal USB2A, USB2-RJ45 dongle
etc.
> And then you still have less memory and less speed compaired to a Pi 3B.

That's true of the rPi anyway as the cost of the keyboard, mouse, monitor
and even a decent power supply ends up being significantly pricey compared
to the rPi itself.

The zero doesn't need a microHDMI to HDMI converter, just have a suitable
cable.  Everything I have is micro USB using a standard cable unless it's a
keyboard or mouse.  You can use the zero headless just as well as anything.
I guess costing a PC kinda blows the budget if you want to count that.

What is the RJ-45 for?  You mean an Ethernet USB converter?

You can always develop you app on a regular rPi then use the zero in the end
device.


> Another friend uses a dedicated Pi 1B with Linux for his sunpanel power
meting
> and to update that info to a website. If configured well, it can run
headless.

--

Rick C

Viewed the eclipse at Wintercrest Farms,
on the centerline of totality since 1998

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