koppi

/* Tic tac toe in C. */
#include <stdio.h>
#define P printf
enum { X = 'X', O = 'O', N = '\0', C = 'C' };
static char ck(char b[9]) {
  int i, w[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 3, 6,
                1, 4, 7, 2, 5, 8, 0, 4, 8, 2, 4, 6};
  for (i = 0; i < 24; i += 3) {
    if (b[w[i + 0]] == X && b[w[i + 1]] == X && b[w[i + 2]] == X)
      return X;

koppi

/*
 * cwrx.c - ncurses morse decoder for Linux
 *
 * Copyright (c) 2011 - 2023 Jakob Flierl <jakob.flierl@gmail.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *

koppi

( pcb2gcode 1.3.0 )
( Gcode for LinuxCNC )

G94 ( Millimeters per minute feed rate. )
G21 ( Units == Millimeters. )

G90 ( Absolute coordinates. )
S10000 ( RPM spindle speed. )
G64 P0.00333 ( set maximum deviation from commanded toolpath )
F600.00000 ( Feedrate. )

koppi

#!/usr/bin/env python2
#
# submit an ngc file to a running LinuxCNC / Machinekit instance
#
# used as a filter for https://github.com/stewartoallen/grid-print
#

import sys
from shutil import copyfile
import linuxcnc

koppi

/*  
 *  Copyright 2016 Jakob Flierl (jakob.flierl "at" gmail.com)
 *  
 *  ngc-hole is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  ngc-hole is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

koppi

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Sends HAL signals to the given MQTT broker host.
#
# usage: hal2mqtt.py [hostname]
#
# Video demo at https://www.youtube.com/watch?v=uFbr7xBjItE
#
# sudo apt-get install mosquitto mosquitto-clients python-mosquitto

koppi

#!/usr/bin/env bash
#
# Download, build and install https://github.com/stv0g/calcelestial
#

# Basic calcelestial usage examples with the at command:
#
# # make a beep at sunrise in Berlin
# echo "beep" | at $(calcelestial -m rise -p sun -q Berlin)
#

koppi

#!/usr/bin/env bash

# Record a webcam's video and audio stream defined by the $V and $A variables
# to ~/Desktop/webcam-$timestamp.mkv with cvlc and PulseAudio.
#
# Required tools:
#
# sudo apt -y install v4l-utils uvcdynctrl pulseaudio-utils vlc-nox
#
# Webcams tested:

koppi

unsigned char AC_LOAD = 7;    // Output to Opto Triac pin
unsigned char dimming = 3;  // Dimming level (0-100)
unsigned char i;

void setup() {
  // put your setup code here, to run once:
  pinMode(AC_LOAD, OUTPUT);// Set AC Load pin as output
  attachInterrupt(1, zero_crosss_int, RISING);

  // Serial.begin(9600);

koppi

#!/usr/bin/env bash
#
# mpd fade in / out script:
# 
#   fades the current mpc volume to the given <end volume>
#   within the given <duration in secs>
#
# Required tools:
#
#   sudo apt -y install mpc bc