Hermann-SW

#!/bin/bash
if [[ rgb2fb.c -nt rgb2fb ]]; then
  echo "compiling rgb2fb.c"; gcc -O6 -Wall -pedantic -Wextra rgb2fb.c -o rgb2fb
fi

if [[ "$#" > 0 ]]; then t=$1; else t=600000; fi
raspividyuv -fps 90 -rgb -o - -pts $0.pts                    \
            -md 7 -w 640 -h 480 -n -t $t -awb greyworld | \
./rgb2fb 640 480 F 2> $0.txt

Hermann-SW

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <time.h>

#include <unistd.h>
#include <fcntl.h>
#include <linux/fb.h>
#include <sys/mman.h>

Hermann-SW

#!/bin/bash
if [[ rgb2fb.c -nt rgb2fb ]]; then
  echo "compiling rgb2fb.c"; gcc -O6 -Wall -pedantic -Wextra rgb2fb.c -o rgb2fb
fi

if [[ "$#" > 0 ]]; then t=$1; else t=600000; fi
raspividyuv -fps 135 -rgb -o - -pts $0.pts                    \
            -md 7 -w 640 -h 480 -n -t $t -awb greyworld | \
./rgb2fb 640 480 0 2> $0.txt

Hermann-SW

/*
   $ gcc -O6 -Wall -pedantic -Wextra -o toggle toggle.c -lpigpio -lrt -lpthread
   $

   Usage:
   $ sudo killall pigpiod
   $ sudo ./toggle 30 &
   $ raspivid -md 1 -w 1920 -h 1080 -p 22,50,960,540 -o tst.h264 -fps 30 -t 8000 -pts tst.pts
   $ ./ptsanalyze tst.pts 0
   $ # https://github.com/Hermann-SW/userland/blob/master/tools/ptsanalyze

Hermann-SW

/*
   $ gcc -O6 -Wall -pedantic -Wextra -o dead-man_button dead-man_button.c -lpigpio -lrt -lpthread
   $

   Usage:
   $ sudo killall pigpiod
   $ sudo ./dead-man_button
   $
*/
#include <stdio.h>

Hermann-SW

#!/bin/bash
while true
do
  fin_wait2=`netstat 2>/dev/null | grep 1337`
  if [[ "$fin_wait2" = "" ]]
  then
    sudo ./dead-man_button
  else
    sudo ./dead-man_button 1338
  fi

Hermann-SW

#!/bin/bash

if [[ "$1" == "" || ${1: -4} != ".ino" ]]; then
  echo -e "Usage:\n"`basename $0`" file.ino\nsudo ./file"
  exit
fi

wrapper=`cat << EndOfWrapper
#include <time.h>
#include <unistd.h>

Hermann-SW

/*
Compile and link

gcc -O6 -I/opt/vc/include -L/opt/vc/lib -lbcm_host -o nanoflash nanoflash.c

Run example (gpioDpin rising edge => o[ns] offset => d[ns] gpio18 pwm flash)

$ sudo killall pigpiod
$ sudo ./nanoflash o d
*/

Hermann-SW

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

#define N (32768+18580480)

int main(int argc, char* argv[])
{
  FILE *src;

Hermann-SW

/*
Compile and link

gcc -I/opt/vc/include -L/opt/vc/lib -lbcm_host -o nanopulse nanopulse.c

Run example (10000 10 nanosecond pulses with 2000 nano second gap)

sudo ./nanopulse 10 10000 2000
*/