larsch

#!/usr/bin/env ruby
def lesseq(a, b, c, d)
  return a * d <= c * b
end

lower_numer = 2
lower_denom = 1
upper_numer = 3
upper_denom = 1

larsch

//
// Rotary Encoder Driver
//
// Copyright (C) 2016 by Lars Christensen <[email protected]>
// MIT License
//

#include "rotary.hpp"
#include <avr/interrupt.h>
#include <avr/io.h>

larsch

#!/bin/sh -exu
dev=$1
cd $(mktemp -d)

function umountboot {
    umount boot || true
    umount root || true
}

# RPi1/Zero (armv6h):

larsch

#include <pcap.h>
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>
#include <signal.h>

pcap_t* pcap;

void* thread(void* arg) {

larsch

/**
 * Attach an event listener to an object. Invokes the handle()
 * callback on every event, and the apply() handler eventually, but
 * with at least 'delay' milliseconds between each invokation.
 */
function addThrottledEventHandler(elem, event, handle, apply, delay) {
  let nextApply = performance.now();
  let timerId = null;
  function invokeApply() { apply(); timerId = null; }
  elem.addEventListener(event, (ev) => {

larsch

#!/bin/sh -exu
ip netns delete ns1
ip netns delete ns2
ip netns add ns1
ip netns add ns2
ip link add veth-ns1 type veth peer name veth-ns2
ip link set veth-ns1 netns ns1
ip link set veth-ns2 netns ns2
ip -n ns1 link set veth-ns1 up
ip -n ns2 link set veth-ns2 up

larsch

#!/bin/sh -exu
ip netns delete ns1
ip netns delete ns2
ip netns add ns1
ip link add veth-ns1 type veth peer name veth-ns2
ip link set veth-ns1 netns ns1
ip -n ns1 link set veth-ns1 up
ip link set veth-ns2 up
ip -n ns1 address add 10.0.0.1/30 dev veth-ns1
ip address add 10.0.0.2/30 dev veth-ns2

larsch

Ulti-Alu-Maker Cura 2 Configuration file

Machine definition for custom Aluminium Extrusion Ultimaker 2 clone (Ulti-Alu-Maker). Copy to ~/.local/share/cura/machines.

larsch

#include <avr/sleep.h>

// const int com[4] = { 10, 13, 14, 4 };
// const int com[4] = { 4, 14, 13, 10 };
// const int dig[8] = { 11, 15, 6, 8, 9, 12, 5, 7 };
// const int dig[8] = { 13, 17, 4, 6, 7, 14, 3, 5 };
// const int num[10] = { 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f };

// int nmd[10] = {};
// int nmb[10] = {};

larsch

#include <avr/interrupt.h>
#include <avr/io.h>

volatile uint8_t rotaryPosition = 0;

void __attribute__((constructor)) init_rotary()
{
  EICRA |= _BV(ISC00); // enable interrupt on change INT0 (for rotary encoder)
  EIMSK |= (1 << INT0); // enable INT0 (for rotary encoder)
  DDRD &= ~(_BV(PORTD3) | _BV(PORTD4) | _BV(PORTD5)); // input mode (rotary encoder clk, dt, sw)