Raspberry Pi Forums

How and from where are you trying to install "different kinds of software"? Since you appear to be using raspbian are you doing something like this first? sudo apt-get update sudo apt-get upgrade NB: "sudo apt-get upgrade" is advisable if some time has past since you wrote the OS image to the SDHC c...

If I'm reading the GPIO P1 connector's labelling/pinout correctly GPIO#18 appears to be adjacent to RXD - could there be a solder-bridge between them?
Trev.

... Something I haven't checked, but think may be correct is that any hub that has proper power management will have a PSU that provides more than 5V, so it can regulate it down to 5V with 500mA for each port (or more for "charging" ports). That sort of hub would be unlikely to backpower anything. ...

... Also, I took another reading off of the pins with a TRUE ground and I got 3.14 on the 3.3V pin and only 4.29 on the 5V pin -- is that within normal range? I'm using a 5V 2.0A adapter, which is close to brand new (it came with my new tablet a month ago), so I don't think that's the problem. ... ...

when i put it into a dell latitude sd card reader. the program i was using to format is the one in the quick start guide. It could be that the dell's SD card slot is not SDHC compatible (esp. for writing). I've always used an external, "USB-stick-like", SDHC card reader/writer** since my ~3 year ol...

IIRC I did get a RTL8188CUS-based nano-dongle working some time ago (see this thread: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=36&t=35959&p=302445#p302445 ) but (again IIRC) it suffered "link-dropout" from time-to-time for which I blamed my router which "regularly" loses connection to my Wi...

... Genuine Apple charger or 3rd party? ... They can be very different! See my measurements at http://www.cpmspectrepi.webspace.virginmedia.com/raspberry_pi/MoinMoinExport/OtherTestedPSUs.html#Apple_iPhone_Charger_A1399 . The clone's behaviour shown below that for the Apple A1399 has the strangest ...

The 'USB disconnect' message on the line immediately after the 'spinning up' is a strong indication of powering problems. Hard disks take a lot more current when spinning up the platters. The RPi has a fuse (self resetting) on its power input which won't pass more than about 1 amp. The RPi itself n...

thnx so when i use non static adress , i should put 192.168.1.5' for ssh ? No. That's just an example IP address that drgeoff was using. Depending upon which of his suggestions to find the actual IP address needed you can use, you replace (the 'dotted' numeric string) "192.168.1.5" with what you've...

FWIW I'm (slowly) developing some 'C' tools including "wrappers" around 'C' system calls do direct i2c commands and Gordons' wiringPi methods (https://projects.drogon.net/raspberry-pi/wiringpi/ ) with "built-in diagnostics". Some early examples of the latter can be found here (http://www.cpmspectrep...

... Debian 6 is Squeeze. Debian 7 is Wheezy. Minicom is available for both. ... Thanks for that. Historically I originally went the Red Hat --- Fedora route on my (often dual-booted) "big-boxes, migrating to Ubuntu (esp. on my netbook). Although I did install Debian (Lenny?) on a NSLU2 (Slug) I've ...

W.r.t. issue 2): What O.S. (name, version) are you using? Did you perform a "sudo apt-get update" (and, possibly, "sudo apt-get upgrade") before trying to install? It's possible that your "package-list" is out of date and thus you're trying to install (out of date) versions that are no longer avail...

Oh it's such a lo.......ng time since I played about with photo-resistors :) IIRC they're pretty insensitive and slow - hence the addition of a transistor for switching purposes. Even when brightly illuminated their resistance is still relatively high and so, depending upon the battery voltage, you'...

W.r.t. issue 2): What O.S. (name, version) are you using? Did you perform a "sudo apt-get update" (and, possibly, "sudo apt-get upgrade") before trying to install? It's possible that your "package-list" is out of date and thus you're trying to install (out of date) versions that are no longer availa...

As I understand matters, the USB sub-system on Model A is not identical to that on a Model B. This means that some USB devices do not work (as well) on an A cf. a B. I've noted that some USB hubs (usually unpowered) can lead to boot failure. Also it may depend upon which release (of Wheezy Raspbian)...

I have started to play with a few MCP23017 port expanders, and I'm running them at 3.3v just to be save. But I'm wondering if I can power them at 5v instead of 3.3v safely. They only communicate with the Pi over I2C, so I'm thinking yes, but I2C comes in over two of the GPIO pins that can only hand...

Some things to try and a question or two. Take a look at http://elinux.org/R-Pi_Troubleshooting (if you've not done so already) esp. the "Power supply" section and "test point voltage measurements" - if you can make those measurements and report back that will help us. W.r.t. to your Samsung charger...

I understand that and I'll have to toy around to see what I can do.. I'm only running FileZilla on the win system and connecting to the two pis ... at least that is what I believe.. installed tightvncserver on each pi... does that make sense? It was a little unclear as to what your setup was. As it...

... Are you going Pi to Pi. I have one pi in one location... another in another part of the house.. using my desktop to remote into both... want to move files or whatever from one to the other from the GUI on my desktop.. if I am in FileZilla and I right click.. I don't see an option to store that ...

... but I can't drag and drop. Maybe I need to look into fileZilla deeper but if someone knows if this does or doesn't work or a way to see them from my windows desktop and have both going so I can drag and drop I would really appreciate it.. ... What about "right-mouse-click" "download" or "upload...

Hi there, my first post! I'm about to get a Model B, and had a questions about the power (didn't want to start a new thread for such a noob question). Anyway, i'd like to use a Wifi dongle, and understand that 700mA won't provide enough juice. Will a 5.2V 2.4A power supply work okay? Thanks in adva...

FWIW I made some notes (can be found at http://www.cpmspectrepi.webspace.virgin ... apter.html ) when I was experimenting with a different USB sound adapter to yours. Hopefully they may be of some help or, at least, provide a "clue or two".
Trev.

It's probably your HTC 'phone charger. Although many chargers are rated at 5V 1A they may not provide 5V at 1A such as this HTC model: http://www.cpmspectrepi.webspace.virginmedia.com/raspberry_pi/MoinMoinExport/OtherTestedPSUs.html#HTC_TC_B250 . Voltage drops like that shown are also made worse by ...

I have raspbian installed on a 4GB SD card, I've not installed anything else on it apart from "apt-get update" etc and now I have no space left. How do I find out what is using the space and how do I go about removing these? Thanks Did you run the "expand root filesystem" option in "raspi-config" (...

I'm working on a Pi based kiosk for a museum I work with. It's a nice idea to say that it's just left on at all times, but in reality, it will need to be shut down/restarted periodically. While I know how to shut it down properly, and then restart it, others at the museum will not, and I don't thin...

Search found 5266 matches

Re: Why does installing anything fail?

Re: UART + GPIO together

Re: Plugging in 2TB WD Passpost HDD freezes Pi

Re: Help!! What have I done?!?

Re: SD formatter

Re: Is there a wifi dongle that works for the model a withou

Re: startx trouble!!!

Re: Raspberry Pi does not recognize External HD

Re: SSH and Wifi USB adapter

Re: writing to i2c in C ?

Re: unable to read serial data from BCM 2835, GPIO14,15

Re: unable to read serial data from BCM 2835, GPIO14,15

Re: shorting circuits and such

Re: unable to read serial data from BCM 2835, GPIO14,15

Re: Modal A, why does it keep breaking memory cards ?

Re: MCP23017 running at 5v?

Re: No display, no LEDs blinking.

Re: FileZilla

Re: FileZilla

Re: FileZilla

Re: Max power supply voltage

Re: Audio Out Through USB

Re: pi freezes when Ethernet is plugged in

Re: Run out of space

Re: How bad is it to power cycle the Pi without proper shutd