Hermann Stamm-Wilbrandt Hermann-SW

Hermann-SW / img_type_size.py

Created January 25, 2020 15:07

pipeable "file" command replacement for gif/jpeg/png (https://www.raspberrypi.org/forums/viewtopic.php?f=32&t=262967)

	#!/usr/bin/env python3
	'''
	Pipeable "file" command replacement for gif/jpeg/png images.

	Outputs three lines (type, width, height), followed by copy of input.
	'''
	import struct
	import sys

	def get_image_type_size(fhandle):

Hermann-SW / test.txt

Last active January 26, 2020 16:28

learn about revisions

	foo
	Aa (Orchidaceae)
	Aaronsohnia (Compositae)
	Abacopteris (Thelypteridaceae)
	Abarema (Leguminosae)
	Abatia (Salicaceae)
	Abdominea (Orchidaceae)
	Abdulmajidia (Lecythidaceae)
	Abelia (Caprifoliaceae)
	Abeliophyllum (Oleaceae)

Hermann-SW / rgb2fb.c

Last active February 6, 2020 11:02

High framerate drawing stream of RGB frames on Raspberry framebuffer (https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=264109)

Hermann-SW / yuvrgbfb

Created February 5, 2020 14:37

profiling bash script for work with rgba2fb.c (https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=264109)

	#!/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 / yuvrgbfb0

Created February 6, 2020 11:08

profiling bash script for work with rgba2fb.c (https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=264109)

	#!/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 / toggle.c

Created March 12, 2020 19:00

toggle GPIO17 camera schedule every Nth frame, triggeded by Raspberry hardware camera sync pulses on GPIO18 (https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=267761)

	/*
	$ 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 / dead-man_button.c

Created March 28, 2020 14:44

Raspberry Pi code for raspcatbot control by Wifi joystick (https://esp32.com/viewtopic.php?f=19&t=14803&p=57338#p57338)

	/*
	$ 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 / gist:042bdaf97c594f36cb2eb422fe2a8d5f

Created March 28, 2020 14:45

helper code for dead-man_button.c (https://esp32.com/viewtopic.php?f=19&t=14803&p=57338#p57338)

	#!/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 / wifi_joystick.ino

Created March 28, 2020 14:48

Wifi Joystick ESP32 Arduino sketch (https://esp32.com/viewtopic.php?f=19&t=14803&p=57338#p57338)

Hermann-SW / arduino_compile

Last active April 27, 2020 07:57

Simple Raspberry pigpio based Arduino sketch compiler

	#!/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>