peterwallhead

# LICENSE: public domain

def calculate_initial_compass_bearing(pointA, pointB):
    """
    Calculates the bearing between two points.

    The formulae used is the following:
        θ = atan2(sin(Δlong).cos(lat2),
                  cos(lat1).sin(lat2) − sin(lat1).cos(lat2).cos(Δlong))

peterwallhead

const btns = document.querySelectorAll('button[aria-label*="Accept"]')
for(const btn of btns){
  setTimeout(() => { btn.click() }, 300)
}

peterwallhead

module springLeaf(height=10, leaf_spacing=10, spring_width=30) {
    difference() {
        union() {
            
            translate([0,-spring_width,0])
            cylinder(h=height, d=leaf_spacing, $fn=36);
            
            translate([-leaf_spacing/2,-spring_width,0])
            cube([leaf_spacing,spring_width-(leaf_spacing/2),height]);
        }

peterwallhead

This Hikvision webcam was a pain to get running on Linux Ubuntu.

After plugging it in all my photo taking apps refused to load or crashed very quickly after opening.

I used this to help solve the issue.

After plugging in the webcam, run the following in Terminal

sudo rmmod uvcvideo

peterwallhead

import cv2
import sys
import os.path
import numpy as np

def drawMatches(img1, kp1, img2, kp2, matches):

    rows1 = img1.shape[0]
    cols1 = img1.shape[1]
    rows2 = img2.shape[0]

peterwallhead

curl https://bootstrap.pypa.io/get-pip.py | python

peterwallhead

/* A version of https://github.com/johnwargo/Seeed-Studio-Relay-Board/blob/master/seeed_relay_test.py in C for use with https://www.seeedstudio.com/Raspberry-Pi-Relay-Board-v1.0-p-2409.html */

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <wiringPiI2C.h>

int deviceRegMode1 = 0x06;
int deviceRegData = 0xff;

peterwallhead

.box {
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
}

peterwallhead

A Record:

• *.example.com > IP
• example.com > IP

MX Record:

• example.com > 40:webmail.servercrew.com.au

CNAME Record:

• email.example.com > mailgun.org

peterwallhead

#
# Controlling an RC car via webcam (well, so far, just tracking it...)
#
# Requires OpenCV 2.0 and Python 2.6
#

import cv


def find_car(image):