beaglebone black

BEAGLEBONE BLACK

Fig 1:beaglebone black(BBB)

BUILT IN NETWORKINGFILE SYSTEMWE CAN USE DIFFERENT PROGRAMMING

LANGUAGES.MULTITASKING.

WHY BEAGLEBONE BLACK

PROCESSOR(1Gz ARM CORTEX A8)RAM(512MB DDR3)USBMICRO HDMIOS(DEBIAN)ETHERNETMICROSD CARD

BBB SPECIFICATIONS

Fig2:BBB parts

PRESENT WORKING DIRECTORY(PWD)TO LIST DIRECTORIES AND FILES IN

DIRECTORY(LS)CHANGE DIRECTORY(CD) cd <path>CREATE DIRECTORY(MKDIR) mkdir <directory name>SHUTDOWN(POWEROFF)COPY(CP) cp <file name> <path>

LINUX COMMOND LINE

MOVE(MV) mv <filename> <path> for rename mv <oldfile name> <newfile name>DELETE(RM) rm <file name>TO CREATE A FILE AND EDIT(VIM) vim <file name>

LINUX COMMOND LINE

DISPLAY ON SCRENN(ECHO) DATE

TO INSTALL PACKAGE(APT-GET)

IN LINUX WE HAVE SHELLS BASH SHELL C SHELL TC SHELL K SHELLShell scripting is nothing but number of

commands written into a file to perform some action.

SHELL SCRIPTING

IF CONDITION if test <expression> then statements elif test <expression> then statements else statements fi

FOR LOOP for (( initiation ; condition ; increment or

decrement)) do statements doneWhile LOOP while test <expression> do statements done

EQUAL <first operand> -eq <second operand>NOT EQUEL <first operand> -ne <second operand>Less than <first operand> -lt <second operand>Less than or equal to <first operand> -le

<second operand>Greater than <first operand> -gt <second

operand>Greater than or equal to <first operand> -ge

<second operand>

CONDITION STATEMENTS

Environment variables are named values that configure Linux environment.

Some variables arePwdUserOldpwdPathShell

ENVIRONMENT VARIABLES

FILE SYSTEM HIERARCHY

IN BEALEBONE BLACK WE HAVE TWO PIN HEADER P8 AND P9 .

EACH HAVE 46 PINS.THESE PINS HAVE 7 MODESFOR EACH MODE SAME PIN WORKS

DIFRENTLY.

PIN HEADERS

DEFUALT PIN CONFIGURATON

If we want to use gpio1_16(15) pin first we need to export physical address of that pin.

Calculating physical address gpio1_16 1x32=32 32+16=48Export 48 then pin will be available for use.Write in or out into direction file to make

input or out put pin.Write 0 or 1 into value file to make pin 0 or 1.

ACCESSING GPIO PINS

Blink led c program

Pir program

Desktop sharingType sudo –u debian tightvncscreenThen search for remmina remote desktop

client.Create new remote desktop file.Set configurationsClick connect

BEAGLEBONE BLACK DESKTOP

Quiz c program

output

In p9 header pin32 to pin 40 are 7 analog inputs, ground and vcc.

Type command echo cap-bone-iio > /sys/devices/bone-

cpemgr.9/slots change directory to cd

/sys/devices/ocp.3/helper.15List available directories.It will list all analog pin AIN0-AIN6Read those files for digital output.

Analog inputs

THE END