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by gelfling6
Thu Jan 21, 2016 2:29 am
Forum: General discussion
Topic: So the next batch of Zeros?
Replies: 52
Views: 8074

Re: So the next batch of Zeros?

AM I the only one, who seems a little perturbed, as the original price for the Zero, was $5.00 (USD? Or other?) and yet, I see them for sale as much as $30-$50 a piece? Strikes me as we here in the states call "Scalping" (buying a ticket to an event at the bargain price, But trying to resell it at a...
by gelfling6
Mon Dec 22, 2014 4:59 pm
Forum: Teaching and learning resources
Topic: STICKY: Free Python Books / Tutorials
Replies: 58
Views: 101494

Re: Free Python Books / Tutorials

I highly suggest removing the WOWeBooks link... It is legitimate, but riddled with pop-ups which are not age appropriate, and you either need to register ($$) or wait 30 seconds (or longer!) for the actual pdf to download, and you are limited to MAX 180mb/hour... Nothing personal to the contributor,...
by gelfling6
Mon Dec 01, 2014 9:32 pm
Forum: Python
Topic: Best Python IDE
Replies: 13
Views: 15288

Re: Best Python IDE

I'm slowly (if anything could crawl slower than a snail) cutting my teeth on Python 2.7.8, and using gedit as the editor under Linux on a laptop running Ultimate Edition 3.5 (a UBUNTU variant). Mostly pointed to this by Zed Shaw's book, "Learn Python The Hard Way", 3rd edition. I like how gedit high...
by gelfling6
Fri Feb 07, 2014 6:41 pm
Forum: General discussion
Topic: [Solved][renamed] Make Self-powered hub separately powered
Replies: 14
Views: 5492

Re: create a wall-powered "1 port hub"?

I would think, instead of sacrificing a port on a powered hub, You'd want to keep all open. I built a simple switch box that has a coaxial socket on one side, with a simple SPST toggle switch. Inside, the center pin of the connector goes to one side of the switch, the other side from the switch bran...
by gelfling6
Tue Nov 12, 2013 1:18 am
Forum: General discussion
Topic: Powering Arduino, Rpi and DC motors from battery
Replies: 10
Views: 3485

Re: Powering Arduino, Rpi and DC motors from battery

not impossible, but I would heavily suggest a LARGE heatsink and fan assembly. Since You're powering it off a 12V battery, a simple 12V cooling fan would be ideal, drawing air through the heatsink. (I never was a fan (pardon the pun) of fans blowing the air through the heatsink.. forces too much dus...
by gelfling6
Tue Nov 12, 2013 1:02 am
Forum: General discussion
Topic: GPIO (new) problems
Replies: 10
Views: 3485

Re: GPIO (new) problems

Pretty sure it's as others have said, and the error message noted.. Python can only be run as root.. the work-around I've always used, on any linux based machine I use, as long as I'm the owner, is under terminal, issued the command: sudu -s On most platforms, it asks for your log-on password, and Y...
by gelfling6
Tue Oct 15, 2013 3:21 am
Forum: General discussion
Topic: Power HDD and Raspberry pi
Replies: 1
Views: 693

Re: Power HDD and Raspberry pi

If you're powering the drive through a powered external USB hub, yes, but you're also at risk of the maximum load the hub will allow. (exaggerated example ratings, but if the drive draws 2-Amps, add the 1-amp for the Pi, and the hub only allows no more than 2-amp for ALL sockets, it will blow the fu...
by gelfling6
Wed Mar 13, 2013 3:36 pm
Forum: Beginners
Topic: A noob needs answer to a few questions
Replies: 14
Views: 2425

Re: A noob needs answer to a few questions

One thing I'm finding, is MUON has the ability to write out what is installed, and read back in with the Package Manager, which I'm presently using to rebuild a crashed "Ultimate Edition UBUNTU 3.5" on a laptop. (can't remember what exactly I did, but while doing clean-up with apt-get, it blitzed th...
by gelfling6
Fri Mar 01, 2013 12:08 am
Forum: Beginners
Topic: SD card seems to have lost space
Replies: 14
Views: 7484

Re: SD card seems to have lost space

Microsoft seems to choose to act like the competition doesn't exist, and thus refuses to acknowledge that other file formats exists, in its software like partition editors an such. Let alone that it support these non microsoft formats. If support is given its through third party add-ons. Only thing...
by gelfling6
Thu Feb 28, 2013 11:57 pm
Forum: Beginners
Topic: SD How much is enough?
Replies: 3
Views: 2579

Re: SD How much is enough?

Linux isn't anything like Windows, in that it won't slow to a crawl just because it's only got 2GB disk space available. I bought a 4GB card, and with all my applications loaded, I can just git under 3GB. Now, I have no media or data held on my SD card. I have however, accidentally run it to 0b rem...
by gelfling6
Thu Feb 28, 2013 11:50 pm
Forum: Beginners
Topic: Can my Raspberry Pi power a external hard drive?
Replies: 8
Views: 10902

Re: Can my Raspberry Pi power a external hard drive?

Externally powered, yes.. Directly off the Pi? Don't!! That fuse will blow!

There are some external 3.5+ drives, which are powered solely through the USB cable, I would plug them into a powered Hub, and running a cable from the Pi to the Hub's input.

Better safe, that sorry.
by gelfling6
Thu Feb 28, 2013 11:45 pm
Forum: Beginners
Topic: Windows 7, win32diskimager not working!
Replies: 64
Views: 120819

Re: Windows 7, win32diskimager not working!

It works OK for me with Win 7 x64, as well. Works fine for me too.. I just found SDFormatter, so it saves a little time needing to reboot the laptop with Knoppix, then running Disk Utility to recover the partition. can't use the SD socket on another laptop that dedicated Linux, because the socket s...
by gelfling6
Thu Feb 28, 2013 11:34 pm
Forum: Beginners
Topic: Powered usb hub and power supply suggestions.
Replies: 7
Views: 3275

Re: Powered usb hub and power supply suggestions.

I have one I got a 7-port hub at Staples, (with their label) which came with a 3.0-Amp supply, and the 7-port Dynex (Best Buy) hub I modified slightly for the Pi. (soldered the wires for the power cable directly to the coaxial socket , It freed-up a whole USB port!) which came with a 3.6-Amp. As lon...
by gelfling6
Tue Feb 26, 2013 12:58 am
Forum: Troubleshooting
Topic: Reformat SD Card
Replies: 11
Views: 8281

Re: Reformat SD Card

When I accidentally corrupted my 32GB SD card, I tried re-installing one of the older Raspbian ports, and it kept reporting not enough room on the card.. I later found, using Disk Utility under Ultimate Edition UBUNTU, that the card is partitioned off, and Windows only saw the 59MB FAT-32 portion, b...
by gelfling6
Wed Feb 13, 2013 12:01 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Flat cable GPIO for Protoboard
Replies: 3
Views: 1211

Re: Flat cable GPIO for Protoboard

I've been trying to create one of these myself, but with a smaller footprint.. Though, I may end-up making this version myself.. The hard part, is finding a source for PC board that is plated through.. Radioshack no-longer has anything other than single-sided..
by gelfling6
Sun Feb 03, 2013 11:09 pm
Forum: Python
Topic: GPIO and root (again)
Replies: 21
Views: 6562

Re: GPIO and root (again)

One alternative, is using the Root Konsole, which I've used under RaspBian.. Or, as I spotted on a reply someone else gave on another topic, run as root from within a bash shell.. sudo -s (once you enter the root password, it remains as root until you issue the exit command.) Ive been doing this und...
by gelfling6
Thu Jan 31, 2013 12:07 am
Forum: Beginners
Topic: Noob Question Re: Ralink RT5370 WiFi Adapter
Replies: 4
Views: 5796

Re: Noob Question Re: Ralink RT5370 WiFi Adapter

I have the same device it seems. (See picture) Picked it up from a 'Cheap' show (I have a stronger words name, but you can't beat the prices.).. It's based on the RaLink RT-5370, according to both my UBUNTU based laptop & my (I feel so soiled!) Windows-7 based laptop. Ironic, the UBUNTU distro I use...
by gelfling6
Wed Jan 09, 2013 9:43 pm
Forum: Troubleshooting
Topic: Win 32 disk imager
Replies: 45
Views: 83705

Re: Win 32 disk imager

I had to do similar, removing the partitions from the card manually.. I used a USB-Sticked 'Ultimate Edition UBUNTU' on the laptop, and fed the card to Disk Utility, removing all shown partitions, then re-formatting it with a single FAT-32... Very odd..
by gelfling6
Wed Jan 09, 2013 9:38 pm
Forum: Troubleshooting
Topic: Raspi main chip getting very hot.
Replies: 9
Views: 1364

Re: Raspi main chip getting very hot.

Almost kind of wonder, if someone were to mount a small aluminum block w/fins with a thermally conductive epoxy? (shades of some of the really OLD CPU's)
by gelfling6
Tue Dec 25, 2012 11:13 pm
Forum: Troubleshooting
Topic: Suddenly unable to boot Linux yet boots RISC OS fine
Replies: 5
Views: 1150

Re: Suddenly unable to boot Linux yet boots RISC OS fine

I ran into this a week ago, and I went to reburn the OS (Raspbian-Wheezy) to the SD card.. So, i went to wipe the SD card.. on a Win-7 PC.. It would only format just a small portion.. I tried to use Administrative-computer Management, and it showed a good chunk of the space was occupied and unable t...
by gelfling6
Sat Dec 08, 2012 7:39 pm
Forum: Beginners
Topic: Raspberry Pi + HDMI to VGA
Replies: 15
Views: 8796

Re: Raspberry Pi + HDMI to VGA

I've got the same problem, but it doesn't seem to be stealing too much from the Pi.. I'm powering the Pi through a Dynex 7-port USB hub both via a Type-A to Mini-power connector to the Pi's power, but also through a type-A to Mini-B 5 pin plugged into a USB socket on the Pi, and into the hub's main ...
by gelfling6
Sat Dec 08, 2012 7:25 pm
Forum: Beginners
Topic: HDMI to VGA (on a HD VGA monitor)
Replies: 1
Views: 767

HDMI to VGA (on a HD VGA monitor)

Okay, here's a oddity.. I finally found a wide-screen LCD monitor to use with the Pi, But.... It's a VGA connection.. (HD-15 connector).. So.... I looked through EBAY for a VGA to HDMI converter cable.. Found one, it arrived yesterday (Friday).. But.... .. I can use the cable & adapter on my HP DV6 ...
by gelfling6
Sat Dec 01, 2012 9:00 pm
Forum: HATs and other add-ons
Topic: best wifi dongle for raspberry pi..<< OS.Raspbian “wheezy”>>
Replies: 5
Views: 29052

Re: best wifi dongle for raspberry pi..<< OS.Raspbian “wheez

*RED-ALERT! NEWBIE DETECTED!* :lol: Yep, just got mine yesterday, and already scouting for info & hardware. If I read the posts right, basically Wheezy already has a good assortment of base WiFi drivers built-in, so plugging in one of the mini dongles should be recognized and pre-load. (as long as ...

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