Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

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1500 questions
47
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4 answers

Boot from external USB stick / drive?

I know it's not possible to directly boot from an external USB stick / drive, but instead you have to boot from the SD card and then the external device can take over. What's the easiest and preferred way to set this up, therefore boot from SD card…
me.at.coding
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6 answers

Can I install Android?

Is there an Android port for the Raspberry Pi, and if so, where can I find out more about it?
Darren Wilkinson
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6 answers

How can I determine if a given touchscreen is compatible?

I want to attach a touchscreen to my Raspberry Pi. While doing some internet search about this, I found out that this is not trivial, because not all touchscreens are compatible. How do I find out, whether a touchscreen is compatible to the…
Till B
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1 answer

"connect: Network is unreachable" on a working (connected) wlan0 interface

I finally managed to make wlan0 (an Edimax EW-7811Un USB WiFi dongle) connect to my router, but after an apt-get update I discovered that my Raspberry can't connect outside the local network. The Raspberry is running on the latest (as of writing…
Błażej Michalik
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46
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6 answers

How to measure temperature?

What can I connect to the RPi to measure temperature? I think devices connected to the I²C or SPI would make most sense. Here is a question about DHT-22 and other 1-wire devices. But at this stage it seems that 1-wire is difficult on the RPi due to…
John La Rooy
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45
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6 answers

Is there a GPU accelerated Xorg server?

At present all of the official builds of the X Window System run on the CPU, which takes up a lot of processing power and runs X rather slowly. I know there's no official GPU accelerated version of X11 yet, at least not from X.org, but has anyone…
berry120
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45
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2 answers

How to set my Raspberry Pi to boot into the GUI?

As from my previous question, I asked what the power off button in the corner does. Then somebody said if you boot into the GUI automatically, it will give you some options. How do I boot into the GUI at startup?
horIzoN
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45
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5 answers

Power consumption of Pi Zero W?

For those who have the Pi Zero W with them, what is its power consumption in the following modes: No peripherals connected, WiFi And Bluetooth off Only WiFi turned on Only Bluetooth turned on Only camera connected and capturing I am aware of a…
HRJ
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6 answers

How can I keep my Raspbian "Wheezy" up to date?

Is there a sort of update tool for my Raspbian Debian 7 (Wheezy) package? I installed php and lighttpd, and I want to keep those automatically updated for when bugs are found.
Michel
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3 answers

How can I tell if I am using the hard-float or the soft-float version of Debian/Raspbian?

Let's assume that I am dropped into a room with a Raspberry Pi running either Debian or Raspbian. How do I find out if it has hard float support or if it is just using soft float?
fouric
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45
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2 answers

Is setting `max_usb_current=1` to give more power to USB devices a bad idea?

I've been searching around for more information on the /boot/config.txt configuration directive max_usb_current, trying to find out exactly what happens when that is set to 1, but it's hard to find any official documentation. I know the…
geerlingguy
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45
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5 answers

How can I keep system time?

I know that Raspberry Pi does not come with a system clock to save money. How can I keep system time though?
user46
45
votes
6 answers

How to attach an Arduino?

The Arduino website sums it up as Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive…
Lucas Kauffman
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45
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7 answers

Speech processing on the Raspberry Pi

I want to do speech processing on Raspberry Pi to detect specific people (something like unique identification). I would prefer to use only the on-board processor for this, you could assume that internet is not accessible. Also, what are the…
Ruthvik Vaila
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44
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5 answers

How Raspbian Detects Under Voltage

How does the Pi know it being underpowered and to show the lighting bolt? As most of us know, if you use a bad power supply you get the lightning bolt telling you are underpowered. I noticed that when I run my Pi on battery, the last 15 minutes or…
NULL
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