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by fanoush
Sun Oct 20, 2019 6:29 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Getting audio from a Pi Zero
Replies: 4
Views: 95

Re: Getting audio from a Pi Zero

you can also add i2s audio, see e.g http://www.lucadentella.it/en/2017/04/2 ... t-via-i2s/
there are small cheap i2s boards with headphone sockets on ebay that may work out of box
by fanoush
Fri Oct 18, 2019 3:00 pm
Forum: General discussion
Topic: Raspberry Pi Cluster Computer?
Replies: 35
Views: 1053

Re: Raspberry Pi Cluster Computer?

Actually - I was considering having two Pis (due to memory constraints of one): one connected to monitor and keyboard running X windows and another on network using first as X terminal. Also, first (with SSD) would share disk over nfs (at least /home if not more!). That way I would be able to decid...
by fanoush
Fri Oct 18, 2019 6:42 am
Forum: General discussion
Topic: Raspberry Pi Cluster Computer?
Replies: 35
Views: 1053

Re: Raspberry Pi Cluster Computer?

You would not for one instant consider joining 2 PCs or Laptops together. I guess that's true but looks like it would be for wrong reason as we get this question again and again. Maybe two laptops are too big or too expensive or it would be confusing to have two screens or two keyboards. Pi is smal...
by fanoush
Mon Oct 14, 2019 2:26 pm
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 208
Views: 26494

Re: Pi4 64-bit raspbian kernel for testing - Focus on Pi4

There is https://packages.debian.org/buster/gcc- ... -linux-gnu however on the bottom it shows that it is availablle only for some limited set of architectures including i386 and ppc64el (!), it does not include armhf.
by fanoush
Fri Oct 11, 2019 8:11 pm
Forum: General discussion
Topic: Western Digital WD Hard Drives
Replies: 8
Views: 349

Re: Western Digital WD Hard Drives

Andyroo wrote:
Fri Oct 11, 2019 8:01 pm
I’m still looking for the case by the way :lol:
Which one? Got that strange one shown here https://www.pishop.co.za/store/wdlabs-enclosure only in black :-)
However it is for normal full size Pi s not for Zero but looks mostly the same.
by fanoush
Fri Oct 11, 2019 7:50 pm
Forum: General discussion
Topic: Western Digital WD Hard Drives
Replies: 8
Views: 349

Re: Western Digital WD Hard Drives

Actually I have two unused unopened ones, one the 314GB PiDrive with the raspberry logo on the box and part number WD3140LMCW and one in blank box with part number WD3750LMCW. I also have two extra plastic bags with some special splitter cables and AC adapters that WD sold for them. I wouldn't mind ...
by fanoush
Fri Oct 11, 2019 12:38 pm
Forum: Raspbian
Topic: experimental support for multiarch with Raspbian and Debian arm64
Replies: 11
Views: 947

Re: experimental support for multiarch with Raspbian and Debian arm64

wow, all that 64bit focus is great news, good stuff! Before starting to install arm64 packages you should be running a 64-bit kernel. See https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=250730 for more info on that. The 4.19-75 64bit kernel is part of updated raspbian images, then the packag...
by fanoush
Fri Oct 11, 2019 8:17 am
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 208
Views: 26494

Re: Pi4 64-bit raspbian kernel for testing - Focus on Pi4

incognitum wrote:
Tue Oct 08, 2019 5:08 pm
But what about Pi 2, wouldn't [pi2] match both BCM2836 and BCM2837 models?
maybe set arm_64bit=1 would just silently fail on 32bit cpu and load 32bit kernel? And if not it could be changed to work like this? Would it solve the issue?
by fanoush
Fri Oct 11, 2019 7:43 am
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 208
Views: 26494

Re: Pi4 64-bit raspbian kernel for testing - Focus on Pi4

EDIT: a bit of necro qouting from first thread page :-) (because at first I didn't notice I see first page instead of last page of the thread) If you are daring, edit /opt/Wolfram/WolframEngine/12.0/Executables/mathematica find lines: armv?l) SystemIDList="Linux-ARM";; and add after: aarch64) System...
by fanoush
Wed Oct 09, 2019 6:04 pm
Forum: General discussion
Topic: Is there any way I can use both my physical switch and my relay simultaneously
Replies: 5
Views: 187

Re: Is there any way I can use both my physical switch and my relay simultaneously

What I mean is that right now I can only use one for example if I turn on the light from the physical switch I can't turn it off from the relay and if I turn on the light from the relay I can't turn it off from the physical switch. Is there any way I can fix that Sonoff mini can do that. It can be ...
by fanoush
Wed Oct 09, 2019 2:35 pm
Forum: General discussion
Topic: SD Card power failure resilience ideas
Replies: 31
Views: 1282

Re: SD Card power failure resilience ideas

[1a] Simply keep a separate 3.3V power supply alive that only drives the SDC, and thus maintain only a modest voltage and current to keep the SDC comms and FLASH activity alive for a short amount of time. i.e. Tens of milliamps for a few hundred milliseconds. [1b] The intent is to 'wait-out' the co...
by fanoush
Tue Oct 08, 2019 1:25 pm
Forum: Troubleshooting
Topic: STICKY: If you have a Raspberry Pi 4 and are getting bad speeds transferring data to/from USB3.0 SSDs, read this
Replies: 42
Views: 18011

Re: STICKY: If you have a Raspberry Pi 4 and are getting bad speeds transferring data to/from USB3.0 SSDs, read this

jerrm wrote:
Tue Oct 08, 2019 2:06 am
Beware the odroid firmware.
Which one you mean? Some specific one from https://wiki.odroid.com/odroid-xu4/soft ... _fw_update ?
There are several versions inside jms578fwupdater.tgz linked there, the v173.01.00.02 is even from 2019.
by fanoush
Wed Sep 25, 2019 7:23 am
Forum: Troubleshooting
Topic: Rasberry Pi 4 stops working after x number of hours / days
Replies: 4
Views: 253

Re: Rasberry Pi 4 stops working after x number of hours / days

Is the green light (sd card activity) almost constantly on? I have similar experience with Chromium in Buster on Pi4 2GB. I leave it alone with couple of tabs open and no SD activity and enough free memory left and over night I often find it with green LED constantly on like if it is out of memory a...
by fanoush
Wed Sep 25, 2019 6:32 am
Forum: General discussion
Topic: Update for Rpi Zero W?
Replies: 74
Views: 2273

Re: Update for Rpi Zero W?

As you note, price is kind of a big deal when it comes to a $5, well, anything. Indeed. However the OP asked about Zero W and that one is $9. And the WH variant without quantity limits is even more. So while the $5 Zero is difficult for many reasons related to price, the W/WH price hopefully allows...
by fanoush
Wed Sep 25, 2019 5:59 am
Forum: Off topic discussion
Topic: Espruino on $9.99 fitness tracker
Replies: 8
Views: 4787

Re: Espruino on $9.99 fitness tracker

I hope you managed to get some. Few days ago I ordered couple of them for $4.49 and today I noticed it is out of stock. Considering how low the price went over time and how long it already sells this may be end of it, but let's hope it comes back. There are also couple of others fitness trackers men...
by fanoush
Wed Sep 25, 2019 5:17 am
Forum: General discussion
Topic: Update for Rpi Zero W?
Replies: 74
Views: 2273

Re: Update for Rpi Zero W?

One upgrade that looks possible to me is upgrading wifi chip on Zero W to dual 2.4/5Ghz like on 3B+ and 4B.
by fanoush
Fri Sep 20, 2019 12:15 pm
Forum: Advanced users
Topic: Raspberry Pi4 EEPROM update package - beta
Replies: 57
Views: 5166

Re: Raspberry Pi4 EEPROM update package - beta

if I enable dtoverlay=gpio-poweroff,gpiopin=22,active_low ...., the RPi4B does not "shutdown" properly, (using GUI, or CLI poweroff, or CLI shutdown now, HDMI monitor's power ON indicator remains ON), so I have to turn OFF the RPi on the AC power side. I always thought this is on purpose and workin...
by fanoush
Tue Sep 17, 2019 9:30 pm
Forum: Advanced users
Topic: Pi4 64-bit raspbian kernel for testing - Focus on Pi4
Replies: 208
Views: 26494

Re: Pi4 64-bit raspbian kernel for testing - Focus on Pi4

can I get 64bit kernel via rpi-update without changing my stable 32bit kernel too?
by fanoush
Wed Sep 04, 2019 11:31 am
Forum: Raspbian
Topic: Pi 4 with Raspbian Stretch?
Replies: 9
Views: 889

Re: Pi 4 with Raspbian Stretch?

I am running the old stretch I used before in a chroot on pi4. With schroot it even shares home directory and other configs so it is relatively painless. I currently use it to launch pyhoca-gui (remote access to x2go servers) which seems to be broken in Buster for me. So that is another solution to ...
by fanoush
Sat Aug 24, 2019 11:44 am
Forum: General discussion
Topic: Does the foundation produce the Zero under cost?
Replies: 12
Views: 707

Re: Does the foundation produce the Zero under cost?

I don't believe it's made under-cost Maybe it is not made under cost but Zero for $5 or Zero W for $9 is sold under cost. That's why shops can limit how many of them they can sell you. Some shops will sell you one piece ever and refuse second because they are simply losing money on this. Some will ...
by fanoush
Wed Aug 21, 2019 8:47 am
Forum: General discussion
Topic: default 100 meg swap file
Replies: 23
Views: 1041

Re: default 100 meg swap file

Yes, in general, swapping to SDCard is bad, but it's better than letting the system kill processes to free RAM. This would be true if the default value was not 100MB. Without swap you get killed processes but the system works. With 100MB swap this gets filled almost instantly and you get swapping h...
by fanoush
Tue Jul 30, 2019 5:51 am
Forum: Off topic discussion
Topic: Espruino on $9.99 fitness tracker
Replies: 8
Views: 4787

Re: Espruino on $9.99 fitness tracker

Just a heads up that this DS-D6 is for $4.99 now. And with free shipping if you take more than one. Over half a year it went steadily down dollar by dollar but how much lower this could go? Now it is already lower than 10 qty unit price for nrf52832 chip at digikey :-)
by fanoush
Thu Jul 25, 2019 8:15 am
Forum: Bare metal, Assembly language
Topic: Circle - C++ bare metal environment (with USB)
Replies: 231
Views: 60745

Re: Circle - C++ bare metal environment (with USB)

bluetooth stack that I have written mostly from scratch. I will, in the upcoming months, make the source code, as well as my mods to Circle, and a number of other interesting additions to Circle, public. In due time. Amazing, thanks, looking forward to your contributions. As for bluetooth stack - t...
by fanoush
Tue Jul 23, 2019 1:36 pm
Forum: RISCOS
Topic: How long will it take for Risc OS to be on todays level of Raspbian?
Replies: 40
Views: 6209

Re: How long will it take for Risc OS to be on todays level of Raspbian?

And because of the way that RISC OS works, it is very unlikley that adding more HW support will make a difference in the performance, it is a very different model than Linux, BSD, Windows, etc. In RISC OS most HW support is provided by modules that only interface with those modules and programs tha...
by fanoush
Tue Jul 23, 2019 12:30 pm
Forum: Advanced users
Topic: RaspberryPi 4: heatsink or fan
Replies: 83
Views: 28680

Re: RaspberryPi 4: heatsink or fan

The RPi 4B has a completely differing ports layout !! Yes, but that does not answer the question, it could still be universal enough to fit as it is not whole case. Anyway here is one for pi3 https://www.ebay.com/itm/362682376363 and indeed it looks different around hdmi ports and ethernet and also...

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