shell - Arduino Serial Port with Bash -


i got arduino sketch writes binary data serial port. like: 

0110101010010  01010100011011110  10101000110

these codes can have different lengths. now need bash script reads serial output line line,shows read codes spinner , appends codes textfile.

this came with: (relevant parts of script)

spinner() {     local pid=$1     local delay=0.2     local spinstr='|/-\'     while [ "$(ps | awk '{print $1}' | grep $pid)" ];         local temp=${spinstr#?}         printf " [%c]  " "$spinstr"         local spinstr=$temp${spinstr%"$temp"}         sleep $delay         printf "\b\b\b\b\b\b"     done     printf "    \b\b\b\b" }  function monitor {     trap ctrl_c int     echo "starting monitor mode"     echo "receiving..."     stty -f $1 raw speed 9600     ( cat $1 ) & spinner $! }  function ctrl_c() {         echo -e "\naborting. collected keys saved."                 #save keys                 exit 0 }

the method show spinner taken : http://fitnr.com/showing-a-bash-spinner.html.

actually trying read serial output these 2 commands:

stty -f $1 raw speed 9600 ( cat $1 >> $keyfile) & spinner $!

unfortunately not work. here sample screenshot of codes send:

correct codes

this output getting :

wrong codes

can me correct code desired behaviour (marked bold) can accomplished ?

edit: nevermind got working myself of this:

( tee -a < $1 $keyfile ) & spinner $!


Comments

Post a Comment

Popular posts from this blog

powershell Start-Process exit code -1073741502 when used with Credential from a windows service environment -

i'm running strange behavior powershell start-process call. here call: $process = start-process ` "c:\somepath\mybinary.exe" ` -passthru ` -credential $defaultcredential ` -wait ` -workingdirectory "c:\somepath" ` -loaduserprofile if ($process.exitcode -ne 0) { #do } this call return exit code - 1073741502 . after quick search, exit code seems related generic error when program not load required dll (aka. status_dll_init_failed ). when run without -credential $credential program runs correctly. in order isolate problem, manually launched some.exe in prompt target credential , runs smoothly. so problem seems come way start-process cmdlet launch process. i found potential solutions problem tried apply no luck : link , link . would have idea of what's going on here ? edit 1: run proc mon monitoring program activities when launched directly or via powershell script. problem seems occur when loading kernelbase
Read more

twig - Using Twigbridge in a Laravel 5.1 Package -

i'm trying create laravel 5.1 package uses twigbridge instead of .php views. can normal .php views display fine, when try make use of .twig templates i'm met error. possible use twigbridge templates when creating views laravel package or pretty stuck blade , php ? edit 1: loading twig template without extending works. it's when start using {% extends 'file' %} error comes out. i error error loading /virtual/laravel/packages/username/mypackage/src/views/sample.twig: template "templates.master" not defined () in "/virtual/laravel/packages/username/mypackage/src/views/sample.twig" @ line 1. my folders username |_ mypackage |_ src |_ controllers - samplecontroller.php |_ views |_ templates - master.twig - sample.twig twig template sample.twig {% extends 'templates.master' %} {% block content %} {{ parent()
Read more

c# - LINQ join Entities from HashSet's, Join vs Dictionary vs HashSet performance -

i have hashset's each stores t, have written test application compares different relation algorithms can think of, i'm not pleased results getting. does there exist more efficient ways of achieving object relations, once testing? using system; using system.collections.generic; using system.linq; using system.text; using system.threading.tasks; using system.diagnostics; namespace linqtests { class program { static void main(string[] args) { hashset<user> usertable = new hashset<user>(); hashset<userproperty> userpropertytable = new hashset<userproperty>(); #region lets create dummy data. console.writeline("please wait while creating dummy data, can take while..."); console.writeline(""); int rows = 1000000; for(int x = 0; x < rows; x++) { random rnd = new random(); // ad
Read more