Raspberry Pi Forums

peterlite

Lets bypass ancient GB Ethernet and jump to 10GB. Put an M.2 connector on the back so I can use my TB SSD. I do not need Intel i7 6950X speed, i7 6900K would be ok. And no fan. The fan on a 6900K is really noisy. That would make the $5 Zero popular!

peterlite

I had problems with some enclosures due to the USB > SATA chip. The error occurred if plugged in after boot but not before boot. Raspbian, Linux Mint, and some other Debian derivatives. A jMicron chip was part of the problem. I had plenty of enclosures without jMicron chips. https://forums.linuxmint...

peterlite

The dog breathed on it. The device is cold. Something created moisture. Ice formed on the Pi. You have frozen Raspberry Pi. Microwave it and pour warm chocolate over the top. :D Starting any electric device can zap electronics through the mains. On one project, the cause was a welder in the building...

peterlite

To avoid something as high tech as LEDs, wire up an abacus with robot arms to flick the bits back and forth along the register wires.

peterlite

Look through /var/log/syslog for errors and network problems. A slow startup is either applications doing millions of things on a slow microSD card or a network connection timeout or errors.

peterlite

The Pi Zero can act as a USB device/gadget and connect to another computer as a peripheral. The Zero USB connection can then be an Ethernet device giving you a network connection between the two. I did not find gadget mode on the Arduino I used. There may be some models with that option or a plug-in...

peterlite

Add freeBSD and install to your post subject to attract people with experience of installing freeBSD. that will make your post stand out among the hundreds of new posts each day.

peterlite

I look forward to seeing your report on memory usage.

peterlite

If you want a cluster of several systems where each system is a Web server, database server, etc, you end up with a lot of Pi. When each system is a Pi 3 plus some Zeros, the cost drops dramatically. What software can run in 0.5 GB? A Web server is possible with Nginx and PHP 7. MySQL has small conf...

peterlite

How will they connect? Through a router? Are they on a separate network? I would get at least one Pi 3 for development because you can connect it via Ethernet, Wifi, etc, and it has 1GB. Build each component there on a different microSD card. Measure the memory usage. Anything using close to 1 GB wi...

peterlite

Google "raspbian jessie avahi" for a way to use the .local domain with your computers.

peterlite

You could glue a tall heatsink to the Pi then glue the top of the heatsink to the case using the same type of glue. You might not get a good grip on the thin fins of the heatsink. Screws through the case into the gaps between the heatsink fins would work on a strong heatsink. Some sort of adjustable...

peterlite

http://unix.stackexchange.com/questions/224415/whats-the-philosophy-behind-delaying-writing-data-to-disk is a list of the good points of Linux fake write system. You can also edit /etc/fstab and add the mount options sync, dirsync, flush, noatime. On my desktop system, fstab contains the following....

peterlite

70f is a cool 21 in real degrees. No problems. Could your power supply be supplying too much voltage? Any changes to config to overclock? A faulty device plugged into the USB should not do it as the device would draw so much power, the pi would not boot. A background task could run every core at 100...

peterlite

Linux has a fault/feature designed for servers running form a UPS. Linux does not write to disk when code says write to disk. There are posts about how to change Linux config to force Linux to write to disk when it is asked to write to disk. That will dramatically decrease your exposure to file syst...

peterlite

What is your room temperature?
Any sun shining on your Pi?

peterlite

Windows 10 on a Pi Zero with an 8 GB card? Where does Microsoft fit the 60 GB of advertising for Microsoft Office, etc, and the 20 GB of Microsoft Office, etc, time limited trials?

peterlite

A pack of wall plugsd for spacers: https://www.bunnings.com.au/ramset-25mm-red-plastic-wall-plugs-25-pack_p2262420 Some wire, a clothes hanger, for the rods. Connect all the pi boards together. For a fancy rod: https://www.bunnings.com.au/macsim-m8-x-1-2m-hot-dipped-galvanised-threaded-rod_p2410295 ...

peterlite

Start with articles in MagPi. Let the kid read a few articles about different projects. I was at an open day where geeks showed off their wires and breadboards and stuff. A 10 year old had no interest. I introduced the kid to some of the raspberrypi.org project pages and MagPi articles then boom, ex...

peterlite

https://www.jaycar.com.au/products/enclosures-panel-hardware/metal-boxes/c/231 Some are sealed. Some you can seal with a touch of silicon. Some have mounting holes. For hot areas, choose a box larger than the Pi for extra heat dissipation. For humid areas, assemble and seal in an airconditioned roo...

peterlite

Our local electronics hobby shop has aluminium and plastic cases in a wide range of sizes covering from Pi Zero way up past the Pi 3. There are no holes. Use some sealer when you put the lid on. Metal kills Wifi. Plastic lets Wifi through. If I was going for really tough with good Wifi, I would use ...

peterlite

* If you have a spare microSD card, load a new Raspbian and use that to test the Wifi / Bluetooth.
* Any messages in /var/log/syslog?
* Anything about Wifi from the command ifconfig?
* Raspbian Wheezy or Jessie? The config files changed in Raspbian Jessie due to systemd.

peterlite

There are a few posts showing the Pi as a heat map and discussions about heatsinks. The big killers appear to be overclocking and faulty power supplies pumping in too much voltage. Both push up the heat and will reduce the Life of Pi way down from 946080000 seconds.

peterlite

Mobiles do no have a wired input. There are mobile kits you can buy containing a mobile with a screen but no case. You might as well just buy a screen. A 19" monitor is as cheaper than the cheapest smartphone in our local shops.

peterlite

A RAM disk works in the 1 GB Pi 3. Raspbian with a major application uses less than 500 MB. For the models with less memory, you would have to look at what you are running. My Pi Zero projects use around 300 MB, potentially leaving 200 MB for RAM disk. For another option, there are many posts on usi...

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