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by mikerr
Sat Apr 21, 2018 7:47 am
Forum: Raspbian
Topic: How to stream Youtube videos using youtube-dl and omxplayer ?
Replies: 8
Views: 216

Re: How to stream Youtube videos using youtube-dl and omxplayer ?

This should work:

Code: Select all

omxplayer `youtube-dl -g <youtube-url>`
by mikerr
Wed Apr 18, 2018 11:12 am
Forum: General discussion
Topic: Harware Add-on Suggestions
Replies: 7
Views: 266

Re: Harware Add-on Suggestions

chexbox wrote:
Tue Apr 17, 2018 11:20 pm

[*]USB GPIO Board. Wouldn't it be great to be able to add more GPIO for using multiple hats or similar features?
A Pi Zero in gadget mode attached via usb does that one

Pimoroni do a microphone add-on:
https://shop.pimoroni.com/collections/a ... -mics-phat
by mikerr
Thu Apr 12, 2018 9:20 am
Forum: Compute Module
Topic: Compute module soldered to the main PCB
Replies: 3
Views: 152

Re: Compute module soldered to the main PCB

The essential pins are duplicated on either side of the connector (VBAT, 1V8, 3V3 etc) - so it is possible to use only one side, depending on what other features you want to use. https://www.raspberrypi.org/documentation/hardware/computemodule/RPI-CM-DATASHEET-V1_0.pdf Page 11 Small designs are avai...
by mikerr
Sat Apr 07, 2018 1:02 pm
Forum: For sale
Topic: PoE HAT for Raspberry Pi 3 Model B+
Replies: 8
Views: 1294

Re: PoE HAT for Raspberry Pi 3 Model B+

Nice to get that out quickly.
Maybe use pass through headers though so we can use the GPIO ?
by mikerr
Thu Apr 05, 2018 2:33 pm
Forum: Troubleshooting
Topic: Max connected users limit Wifi AP Raspberry Pi 3b+
Replies: 2
Views: 104

Re: Max connected users limit Wifi AP Raspberry Pi 3b+

May be a driver limit, see this old thread for limits of various wifi adaptors:

viewtopic.php?p=726779
by mikerr
Thu Apr 05, 2018 1:16 pm
Forum: Troubleshooting
Topic: Rpi3B+ Wifi problems.
Replies: 59
Views: 1532

Re: Rpi3B+ Wifi problems.

Lost amid the arguments is the case of staying with Jessie, even if its advisible to eventually upgrade to stretch, so here's how I did it: To continue to run JESSIE on a PI 3B+ with wifi, then start with your Jessie install in a pi3, and run: sudo rpi-update ef7621d91cb58ccc856c3c17ddda28685edd23f3...
by mikerr
Wed Apr 04, 2018 9:39 am
Forum: Troubleshooting
Topic: Rpi3B+ Wifi problems.
Replies: 59
Views: 1532

Re: Rpi3B+ Wifi problems.

BoS wrote:
Mon Apr 02, 2018 9:33 pm
I've finally got my original image working on the RPi3B+ with WiFi
On Jessie ? It would be helpful if you shared details on what you added other than rpi-update ?
by mikerr
Wed Apr 04, 2018 9:29 am
Forum: Compute Module
Topic: Faster LAN via RasPi 3B+ LAN chip?
Replies: 11
Views: 798

Re: Faster LAN via RasPi 3B+ LAN chip?

The specs are confused because its actually 2 cascaded usb hubs; a 4port hub and a 3port hub attached (giving 6 ports) with the ethernet using one of those USB The 3b+ spills the beans: lsusb -t /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc_otg/1p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driv...
by mikerr
Tue Apr 03, 2018 7:22 am
Forum: General discussion
Topic: pi3: how to avoid "any" radiation?
Replies: 43
Views: 1338

Re: pi3: how to avoid "any" radiation?

Turn off hdmi (until reboot)

Code: Select all

tvservice -o
Turn off BT and Wifi (permanently):

Code: Select all

sudo rfkill block all
by mikerr
Mon Apr 02, 2018 7:34 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ Wifi Wont work
Replies: 25
Views: 1018

Re: Raspberry Pi 3 B+ Wifi Wont work

ifconfig is showing wlan0 so all is ok...
KeremER wrote:
Mon Apr 02, 2018 5:47 pm

Code: Select all

# iwlist scan
wlan0     No scan results

lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.
Now try sudo iwlist scan ...
by mikerr
Mon Apr 02, 2018 12:44 pm
Forum: Raspbian
Topic: New Raspbian Release 2018-03-13
Replies: 26
Views: 3087

Re: New Raspbian Release 2018-03-13

Looking at the source code would perhaps give clues as to why it's showing but greyed-out. Found the relevent code here: https://github.com/raspberrypi-ui/lxplug-network/blob/master/plugins/dhcpcd-gtk/menu.c if (flags & WSF_SECURE) { if (flags & WSF_PSK) *icon = "network-wireless-encrypted"; else {...
by mikerr
Mon Apr 02, 2018 10:38 am
Forum: Troubleshooting
Topic: Rpi3B+ Wifi problems.
Replies: 59
Views: 1532

Re: Rpi3B+ Wifi problems.

Has someone got a Raspbian image (Jesse 2017-04-10) that they have been using previously on RPi3B that they have been able to get working on the RPi3B+? Not as far back as Jessie, but I have updated several 3B stretch installs to work with 3B+ just by doing a sudo apt-get update && sudo apt-get upg...
by mikerr
Wed Mar 28, 2018 12:51 pm
Forum: General discussion
Topic: pi3: how to avoid "any" radiation?
Replies: 43
Views: 1338

Re: pi3: how to avoid "any" radiation?

Heater wrote:
Wed Mar 28, 2018 12:26 pm
Anyway, why, are you setting up an FCC style EMC testing lab or something?
The use of word "e-smog" should tell you where this is heading...
by mikerr
Wed Mar 28, 2018 11:34 am
Forum: General discussion
Topic: pi3: how to avoid "any" radiation?
Replies: 43
Views: 1338

Re: pi3: how to avoid "any" radiation?

I am desperately looking for a possibility to switch off all radiation sources (wifi, bluetooth) of the pi3. This doesnt mean just disabling it but really having it switched off, no power consumption, no radiation. If wifi and BT are disabled, then they are not using any power or radiating any RF i...
by mikerr
Fri Mar 23, 2018 5:30 pm
Forum: Raspberry Pi Desktop for PC and Mac
Topic: USB boot stick with Pi Desktop + Pi Server: client machine: end kernel panic
Replies: 1
Views: 180

Re: USB boot stick with Pi Desktop + Pi Server: client machine: end kernel panic

The bad news is that piserver won’t work fully when booted from USB stick - it will fail to mount the nfs filesystem as you’ve found.

Only current solution is to install to HDD if you want to use it for piserver.
by mikerr
Thu Mar 22, 2018 11:02 am
Forum: Advanced users
Topic: Pi 3 Network Boot won't work. Driving me nuts.
Replies: 16
Views: 690

Re: Pi 3 Network Boot won't work. Driving me nuts.

I'd still advise you to use x86 PiServer, at least for testing as it's preconfigured and guaranteed to work easily. (you can return to using your own DHCP server once you have the basics working) Similarly use an SD card with only the single file bootcode.bin on (for testing), as that will netboot w...
by mikerr
Thu Mar 22, 2018 10:37 am
Forum: Advanced users
Topic: Pi 3 Network Boot won't work. Driving me nuts.
Replies: 16
Views: 690

Re: Pi 3 Network Boot won't work. Driving me nuts.

The x86 server boots the devices by giving access to the whole filesystem on-demand over the network (instead of on SD)
So no, you can't shutdown the server, as then every netbooted pi will find itself without any filesystem access and crash.

You can still SSH into individual pi as normal.
by mikerr
Wed Mar 21, 2018 11:23 am
Forum: Networking and servers
Topic: USB Flash / Pendrive looking - WiFi network storage (Samba) client
Replies: 14
Views: 567

Re: USB Flash / Pendrive looking - WiFi network storage (Samba) client

Unless its changed, the gadget mode MSD device needs a block device as source.
A samba share isn't a block device, a single file could be though.
by mikerr
Wed Mar 21, 2018 11:09 am
Forum: Advanced users
Topic: Pi 3 Network Boot won't work. Driving me nuts.
Replies: 16
Views: 690

Re: Pi 3 Network Boot won't work. Driving me nuts.

That page has Rpi x86 desktop download:

"DEBIAN STRETCH WITH RASPBERRY PI DESKTOP" (their caps)
https://www.raspberrypi.org/downloads/r ... i-desktop/

how to use the included PiServer:

https://www.raspberrypi.org/blog/piserver/
by mikerr
Wed Mar 21, 2018 10:51 am
Forum: General discussion
Topic: Does bootcode.bin only boot still work ?
Replies: 10
Views: 370

Re: Does bootcode.bin only boot still work ?

Confirmed for lack of netbooting too
- newest bootcode.bin from raspbian 2018-03-13 doesn't powerup ethernet lights on my pi2

and older bootcode.bin works ok.


Bah, its working now - maybe my flaky pi2
by mikerr
Tue Mar 20, 2018 2:00 pm
Forum: General discussion
Topic: use pi zero w in commercial production
Replies: 43
Views: 7906

Re: use pi zero w in commercial production

If you want quantity, but smaller than 1000 or so, look at the pre-soldered header versions, which you can buy up to to 20 of: PI Zero H £9.95 Pi Zero WH £12.80 https://www.modmypi.com/raspberry-pi/raspberry-pi-zero-board-379/rpi-zero-board/raspberry-pi-zero-pre-soldered-header https://www.modmypi.c...
by mikerr
Mon Mar 19, 2018 12:51 pm
Forum: Raspberry Pi Desktop for PC and Mac
Topic: How to set up bootable usb stick for RPI desktop for PC Mac
Replies: 2
Views: 286

Re: How to set up bootable usb stick for RPI desktop for PC Mac

In rufus choose the DD (entire disk image) option rather than the ISO (file by file) option.

Only the DD option creates the persistence partition
by mikerr
Mon Mar 19, 2018 11:49 am
Forum: Advanced users
Topic: Pi 3 Network Boot won't work. Driving me nuts.
Replies: 16
Views: 690

Re: Pi 3 Network Boot won't work. Driving me nuts.

If you have a spare laptop it's far easier to use Rpi x86 Desktop for the server side, at least for testing
as that's all pre-setup correctly for you (Piserver menu)

https://www.raspberrypi.org/downloads/
by mikerr
Mon Mar 19, 2018 10:41 am
Forum: General discussion
Topic: Raspberry Pi 3B+ high idle power consumption. Why?
Replies: 2
Views: 275

Re: Raspberry Pi 3B+ high idle power consumption. Why?

The new usb/ethernet chip uses more power, compare these threads on 3B/3B+ power usage: 3B+ https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=208110 3B https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=143124 You can turn it off temporarily, but of course you then lose USB/ethernet for t...
by mikerr
Mon Mar 19, 2018 9:24 am
Forum: Off topic discussion
Topic: Stephen Hawking RIP
Replies: 18
Views: 3475

Re: Stephen Hawking RIP

Steven Hawking used a raspberry pi for his voice synthesiser for the past year:

https://www.sfchronicle.com/bayarea/art ... 759775.php

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