How to setting Up Raspberry PI

Prerequirements:

 

1. Minimum 8 GB memory card for OS and storage (prefer class 10 memory card).
2. Keyboard
3. Mouse
4. 5V 2Amp adapter
5. HDMI cable (HDMI to VGA converter)
6. LCD monitor or TV with HDMI port
7. Noobs or Raspbian OS image ( https://www.raspberrypi.org/downloads/)

 

Need of all above things to setting up the raspberry Pi

Memory card is used for OS installation and storage purpose. Minimum 8 GB micro SD memory card is required and class 10 is fastest memory card so use this memory card for fast operations.

 

Keyboard and mouse is required for initial set up, programming  a raspberry pi.

 

5V 2Amp adapter is used to power up the raspberry pi module.

 

HDMI cable or VGA converter is used for display the all things on LCD monitor.

 

NOOBS and raspbian are two OS are availabele for raspberry pi you can download any one os image from above link and paste it in your micro sd card.

 

Instillation procedure:

Step 1: Download OS from above link.

Step 2: Create a bootable micro sd card by using Win iso or raffle software in windows PC.

Step 3: Insert the micro SD card inside the raspberry pi.

Step 4: Connect keyboard and mouse at USB port of raspberry pi

Step 5: Power up a raspberry pi by 5V adapter.

Step 4: Installation is automatically taking place.

How to install FFMPEG for Raspberry Pi

FFMPEG is one of those tools I use when I just want to quickly hack together a video and don’t need fancy things like editing, titles, or a user-interface. Compiling on a regular computer isn’t easy, but compiling for the Raspberry Pi takes a little more patience and care. I also wanted to include support for H264 video, which needs to be installed before compiling FFMPEG.

There are lots of examples on the web, but what worked for me was a combination of a few of them, so here’s what I did. Note many of these commands may require  sudo appended before (commands like git ,./configure, and make )

1.INSTALL H264 SUPPORT
Run the following commands, one at a time.

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cd /usr/src git clone git://git.videolan.org/x264 cd x264 ./configure —host=arm–unknown–linux–gnueabi —enable–static —disable–opencl make sudo make install

2.INSTALL OTHER LIBRARIES/FORMATS
Anything else you would like to install should be done now, before compiling FFMPEG. This includes MP3, AAC, etc.

3.   INSTALL FFMPEG
Add lines similar to the  –enable-libx264  for anything else installed above. This may take a REALLY long time, so be patient.

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cd /usr/src git clone https://github.com/FFmpeg/FFmpeg.git cd ffmpeg sudo ./configure —arch=armel —target–os=linux —enable–gpl —enable–libx264 —enable–nonfree make sudo make install

As Malcshour notes, if you have a Model B+ you can use make -j4  instead of just make  to take advantage of all four cores!

 

 

1. DONE! TEST IT
   To test your new install, simply run the command ffmpeg . If you don’t get any errors, you’re all good

Solution for install AUISuite fails

The most recent version of voicecommand has been compiled for ARMv7 (Pi 2). To get it to run on the B+ (ARMv6):

1. Navigate to PiAUISuite/VoiceCommand
2. Edit Makefile
3. Change line 5 to read ARCH := arm
4. Run make -B (the flag will force it to recompile)
5. Now try to reinstall the PiAUISuite

To increase size of rasbperry sd card

Error message :

1
No space left on device
Possible solutions :

Expand rootfs

 
In the terminal type
sudo raspi-config
then select “expand_rootfs”

Found this solution from here.

Another method is to

Update your firmware
An easy way to do it is via : rpi-update

To on and off Relay by one push switch using Attiny 13 micro controller.

In any microcontroller there are limitations of pins and memory. For simple relay operations, i.e ON and OFF, it requires 3 pins; 2 pins are for on and off switches and one is for relay interface.