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dougalcampbell / .bashrc
Created Feb 15, 2016
Set terminal title in bash
View .bashrc
# set title of current terminal
function _set_term_title() {
echo -ne "\033]0;${1}\007"
alias trmtitle=_set_term_title
dougalcampbell / ds-duino.ino
Created Sep 10, 2013
Digispark and nodejs - talking to the Digispark Arduino-compatible microcontroller via USB with the node-hid library
View ds-duino.ino
* Accept control commands via USB.
* Commands start with '!' and end with '.'
* Commands have three parts: action, pin, value: !AAPPVV.
* E.g. '!01p101.' is DigitalWrite, Pin1, value = 1
* Note: This is currently *very* crude. Much improvement could be made.
* I think the use of strncpy is eating a lot of memory. Refactor?
dougalcampbell /
Last active Mar 22, 2022
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  • I am dougalcampbell on github.
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dougalcampbell / NeoPixelTest.ino
Created Oct 31, 2013
Example of driving an Adafruit NeoPixel Ring with the Digispark Arduino-compatible board
View NeoPixelTest.ino
#include <Adafruit_NeoPixel.h>
#define PIN 1
#define STRIPSIZE 16
// Parameter 1 = number of pixels in strip
// Parameter 2 = pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
// NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
// NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
dougalcampbell / phpfpm-mon.cron
Created Feb 14, 2012
Crontab entry to monitor for php-fpm problems
View phpfpm-mon.cron
## Auto-restart PHP when it's returning errors
# Make sure that http://localhost/test.php is an actual PHP script. If it starts returning
# 500 errors, restart the PHP-FPM service
* * * * * /usr/bin/curl --head -sf http://localhost/test.php -o /dev/null || /usr/sbin/service php5-fpm restart
dougalcampbell / utfluv.js
Created Mar 12, 2012
Handle invalid JS character sequences
View utfluv.js
* encode to handle invalid UTF
* If Chrome tells you "Could not decode a text frame as UTF-8" when you try sending
* data from nodejs, try using these functions to encode/decode your JSON objects.
* see discussion here:
* see also, for browsers that don't have native JSON:
* Any time you need to send data between client and server (or vice versa), encode before sending,
View opengraphbookmarklet.js
dougalcampbell / haproxy.cfg
Created Jun 15, 2018
Let's Encrypt renewal with haproxy
View haproxy.cfg
# The key bit is the 'bind' statement in the frontend
frontend https-in
# match the filename here to your $HAPCERTFILE
bind ssl crt /etc/haproxy/certs/combined.pem
reqadd X-Forwarded-Proto:\ https
# acl, use_backend, and other statements...
acl srv_host_1 hdr(host) -i
dougalcampbell / tabifytextareas.js
Created Nov 12, 2013
Bookmarklet: allow tabs in textareas (requires jQuery) Create a toolbar bookmark with this code. Click it when you want to be able to use tabs in a textarea.
View tabifytextareas.js
javascript:$(document).delegate('textarea', 'keydown', function(e) { var keyCode = e.keyCode || e.which; if (keyCode == 9) { e.preventDefault(); var start = $(this).get(0).selectionStart; var end = $(this).get(0).selectionEnd; $(this).val($(this).val().substring(0, start) + "\t" + $(this).val().substring(end)); $(this).get(0).selectionStart = $(this).get(0).selectionEnd = start + 1; }});void(0);
dougalcampbell / toType.js
Created Dec 10, 2013
Really get an object's type in JavaScript
View toType.js
function toType(obj) {
var systype = ({})\s([a-zA-Z]+)/)[1];
if (systype === "Object") {
* See if this is a custom user type, a la:
* function Foo() {}
* foo = new Foo();
* toType(foo); // returns "Foo"
* toType(Foo); // returns "Function"