Bluegoldfish Design Wiki

3d_printing

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:17+00:00

3D Printing * Filament * Fusion 360

7-segment

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:17+00:00

Adafruit 7 Segment Clock Type Display The Adafruit 7 segment clock display provides a four digit display with colons with an i2c interface. It is used by including the Wire.h, Adafruit_LEDBackpack.h and Adafruit_GFX.h libraries. Library Functions digit

abs

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:17+00:00

ABS (Acrylonitrile Butadiene Styrene) ABS (Acrylonitrile Butadiene Styrene) is a very strong and versatile plastic with great thermal resistance. It is the best material for printing mechanical parts. For example ABS is the material used to make LEGO parts.

arduino

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:17+00:00

Arduino / Genuino Arduino (USA name) / Genuino (name outside the USA) is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments.

at_commands

Anonymous (anonymous@undisclosed.example.com) — 2020-12-01T17:03:57+00:00

HC-12 T Commands AT Command Purpose Example HC-12 Response Notes AT Check comms AT OK AT+Bxxxx Set Baud rate AT+B9600 OK+B9600 The baud rate can be 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps, or 115200bps. The default is 9600bps.

back_up_your_raspberry_pi_as_a_disk_image

Anonymous (anonymous@undisclosed.example.com) — 2021-09-20T13:19:46+00:00

Back Up Your Raspberry Pi as a Disk Image * Tom's Hardware

bash_scripts

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:17+00:00

BASH Scripts BASH scripts should start with #!/bin/sh They should be set to be executable with sudo chmod +x

boot_from_a_usb_device

Anonymous (anonymous@undisclosed.example.com) — 2020-10-03T14:58:59+00:00

Boot from a USB device Boot normally from an SD card then type... sudo apt update sudo apt upgrade -y sudo apt full-upgrade -y Check the bootloader version by typing... sudo rpi-eeprom-update If an update is required type... sudo rpi-eeprom-update -a

brick_counting

Anonymous (anonymous@undisclosed.example.com) — 2021-05-17T13:53:28+00:00

Brick Counting When trying to estimate the size of something in a photograph it can be useful to compare its size to the bricks in a nearby wall. A standard modern British brick has the dimensions... {{ :wiki:brick-dimensions.png?nolink |}} {{ :wpbeginner.png?nolink |}}

closewindow

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

Close the current page Close Window

css

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

CSS * CCSmatic * On/Off FlipSwitch

date

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

date() Full information can be found in the PHP Manual syntax string date ( string $format [, int $timestamp = time() ] ) $format This parameter determines what is returned by the functon. For example... * date('Y-m-d H:i:s') => 2013-06-19 09:32:07 * date('jS M y')

deep_sleep

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

ESP8266 Deep Sleep (simple version) An ESP8266 will consume about 70mA when running normally and quite a bit more at times. This level of consumption will run a battery down quite quickly. If you just want your ESP8622 to perform some function, like take a sensor reading once in a while, you can save battery life by putting the ESP8266 to sleep periodically. The current consumption during deep sleep will be only 70μA or less.

deep_sleep_advanced_mode

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

Deep sleep (advanced mode) In the simple mode of deep sleep (see here). I said that we can't carry over values from before the sleep. This is not quite true. It is possible to remember one value that we could use to remember how many times since starting or a hard reset the ESP8266 has been to sleep. This value could be used to provide a serial number to go with a sensor reading for example.

deep_sleep_simple_mode

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

ESP8266 Deep Sleep (simple mode) An ESP8266 will consume about 70mA when running normally and quite a bit more at times. This level of consumption will run a battery down quite quickly. If you just want your ESP8622 to perform some function, like take a sensor reading once in a while, you can save battery life by putting the ESP8266 to sleep periodically. The current consumption during deep sleep will be only 70μA or less.

disable_xmlrpc.php

Anonymous (anonymous@undisclosed.example.com) — 2020-10-04T05:01:26+00:00

Disable xmlrpc.php Add the following lines to your syte's .htaccess file... Order Deny,Allow Deny from all

esp8266

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

ESP8266 * Deep sleep (advanced mode) * Deep sleep (simple mode) * Get MAC address * Serial port data rate

filament

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

3D Printer Filament * Polylactic Acid (PLA) * Acrylonitrile Butadiene Styrene (ABS) * Polyethylene Terephthalate (PET or PETE)

friendlyclock

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

The Friendly Clock To include the friendly clock in a web page... * add this code to the section of your page * add an onLoad event handler in the tag on your page to start the clock like this

fusion_360

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

Fusion 360 Fusion 360 is a 3D CAD, CAM, and CAE tool from Autodesk that connects your entire product development process in a single cloud-based platform that works on both Mac and PC. It is free to use for hobbyists and startups generating <$100k/year in total revenue. See

get_mac_address

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

ESP8266 Get MAC Address Knowing the MAC address of an ESP8266 can be useful. When you set one up on a network you initially don't know what IP address has been allocated to it. If you use an IP scanner to find the IP addresses on your network it can be difficult to determine what node is which. The MAC address is unique to each node and will not change and so if you know it you can usually fine the right node in the IP address listing as the MAC address is normally listed along side.

hc-12

Anonymous (anonymous@undisclosed.example.com) — 2020-11-30T15:01:42+00:00

HC-12 * AT Commands * Manual

html

Anonymous (anonymous@undisclosed.example.com) — 2020-09-26T19:51:36+00:00

HTML and Web Design * A Look into Color Theory in Web Design * An Introduction to Color Theory for Web Designers

javascript

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

JavaScript * Friendly Clock * prompt box * Close current window

libraries

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

Adafruit Libraries * 7 Segment Display

linux

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

Linux * BASH scripts * Run a script at logon

manual

Anonymous (anonymous@undisclosed.example.com) — 2020-12-01T16:21:58+00:00

HC-12 Wireless Serial Port Communication Module User Manual version 2.3B updated from v1.1 English and v2.3 Chinese Edited by Bluegoldfishdesign 01-Dec-20 Product Applications * Wireless sensor * Community building security * Robot wireless control

mysql

Anonymous (anonymous@undisclosed.example.com) — 2020-10-07T16:17:36+00:00

MySQL * Recover the root password

namespace_generator

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

namespace generator **DO NOT REMOVE** Icon FamFamFam namespace page Icons WooFunction namespace page Icons Fugue namespace page

obs_studio

Anonymous (anonymous@undisclosed.example.com) — 2021-07-30T10:38:24+00:00

OBS Studio OBS Studio is a free and open-source cross-platform streaming and recording program built with Qt and maintained by the OBS Project. There are versions of OBS Studio available for Microsoft Windows, on screen clock

on_screen_clock

Anonymous (anonymous@undisclosed.example.com) — 2021-07-30T10:51:52+00:00

On Screen Clock This short php script generates an on screen clock with a green chroma-key background that can be used in OBS... A clock for OBS Studio <…

pet

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

PET or PETE(Polyethylene Terephthalate) PET or PETE (Polyethylene Terephthalate) is a very strong and versatile plastic with great thermal resistance. It is the great material for printing mechanical parts. PET is great for printing large objects as it exhibits almost no warping.

photoshop

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

Photoshop * 20 New and Amazing Photoshop Text Effect Tutorials * Free Pack of 14 Quality Photo Effect Photoshop Actions

php

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:18+00:00

PHP * date()

pla

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

PLA (Polylactic Acid) PLA (Polylactic acid) is a biodegradable and very strong plastic. It is the best material for printing large parts. That is possible thanks to it’s very low thermal expansion. It is available in a range of colours. For further information see

plugins

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

WordPress Plugins WordPress plugins allow you to extend the power of WordPress by adding code to the main program. They have to be formatted correctly before WordPress will recognise them and incorporate them onto its operations. Full information about writing a WordPress Plugin can be found in the

prevent_directory_browsing

Anonymous (anonymous@undisclosed.example.com) — 2020-09-29T05:40:48+00:00

Prevent Directory Browsing Add the following to your .htaccess file.... # BEGIN Directory Browsing Block Options -Indexes # END Directory Browsing Block

prompt

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

prompt var = prompt(, ); e.g. var answer = prompt('What is you name?', 'Fred Bloggs');

protect_your_.htaccess_file

Anonymous (anonymous@undisclosed.example.com) — 2020-09-29T08:23:51+00:00

Protect your .htaccess file Add the following lines to the end of your .htaccess file... order allow,deny deny from all satisfy all

python_and_raspberry_pi

Anonymous (anonymous@undisclosed.example.com) — 2020-10-03T09:59:14+00:00

Python and Raspberry Pi Python * Run a Python programme in the background Raspberry Pi * Boot from a USB device * Back Up Your Raspberry Pi as a Disk Image * Suppress Under Voltage Warning

railway_modelling

Anonymous (anonymous@undisclosed.example.com) — 2021-05-17T11:30:33+00:00

Railway Modeling * Scales * Brick Counting

recover_the_root_password

Anonymous (anonymous@undisclosed.example.com) — 2020-10-09T09:50:02+00:00

Recover the root password Due to the way MySQL encrypts passwords it is not possible to recover one, There is however a way of resetting one. Here is how to do it for the root user... at a command prompt type... * sudo service mysqld stop * sudo mysqld_safe

run_a_python_programme_in_the_background

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T13:44:27+00:00

Run a Python programme in the background There are many ways to run a python program as a background service on your raspberry pi at startup. We will use the systemd method. * Create a .service file for your service as below: sudo nano /lib/systemd/system/helloworld.service

run_a_script_at_logon

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

Run a BASH script at logon Include the script in /etc/profile.d. The script should end with .sh and be executable

sandbox

Anonymous (anonymous@undisclosed.example.com) — 2020-11-30T20:32:16+00:00

Sandbox col 1 col 2 col 3&4row a :2 a1-b1 :3_ a2-c3 a4 row b&c :2- b4c1 c4row d d1 d2 d3 d4 col 1 col 2 col 3 col 4 row 1 1 2 3 row 2 col span end row 3 1 2 3

scales

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

Model Railway Scales Scale Ratio Gauge Notes N 1:152 9.42mm 0.321“ There is a track gauge error of approximately -7% OO 4mm 1:76 16.5mm 0.65” The correct track gauge at the scale of 4 mm per foot should be approximately 18.8 mm. At 16.5 mm, it has a track gauge error of approximately -12.4%

scexamples

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

Shortcode Examples The following code shows how shortcodes can be implemented. 400, 'height' => 200, 'category' => 'technics', 'mono' => 'no', ), $atts)); $mono = strtolower($mono); $returnvalue = ''; return $returnvalue; } add_shortcode('picture', 'random_pictu…

secure_your_wordpress_site

Anonymous (anonymous@undisclosed.example.com) — 2020-10-04T08:30:50+00:00

Secure your WordPress site Changes to .htaccess Add the following lines to your site's .htaccess file.... order allow,deny deny from all satisfy all order allow,deny deny from all Order Deny,Allow Deny from all Options -Indexes

securing_wp-config.php

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T18:36:07+00:00

Securing wp-config.php Add the following at the end of the .htaccess file... order allow,deny deny from all Move wp-config.php one level up in the directory tree out of the web server's root directory. Typically this means moving it to the directory above

serial_port_data_rate

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

ESP8266 Serial Port Data Rate The ESP8266 uses a non-standard data rate when it starts up. This results in a string of garbage characters appearing before a Serial.begin(); statement sets something else up. If you want to see the “garbage” characters set your serial monitor data rate to

siteinfo

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

Bluegoldfish Wordpress Site Information Name Site SU ID SU PW WP Server A Polished Performance www.apolishedperformance.co.uk apoAdmin apoB Yes web74 Bianca Morgan (.uk) www.bianca-morgan.co.uk No web57 Bianca Morgan

start

Anonymous (anonymous@undisclosed.example.com) — 2021-07-30T10:26:48+00:00

WordPress and other stuff Welcome to my wiki of help and notes for the forgetful Topics * 3D Printing * Arduino / Genuino * CSS * ESP8266 * HC-12 * HTML and Web Design * JavaScript * Linux * MySQL * OBS Studio * Photoshop * PHP * Python and Raspberry Pi * Railway Modelling * Bluegoldfish WordPress site information * WordPress This Wiki * This Wiki system * Plugins used on this wiki * Sandbox Useful Sites * OpenDNS Other Bluegoldfish Sites * Blue…

stop_web_crawlers_scanning_your_wordprpess_site

Anonymous (anonymous@undisclosed.example.com) — 2020-09-29T05:47:13+00:00

Stop web crawlers scanning your WordPress site To stop web crawlers and search engines from scanning your WordPress site edit your robots.txt file to contain the following... Disallow: /wp*

suppress_under_voltage_warning

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T21:43:17+00:00

Suppress Under Voltage Warning This is not recommended as it can mask power problems Open /boot/config.txt file. sudo nano /boot/config.txt Add the text shown below at the end of the file then save and close it. # Disable under-voltage warning avoid_warnings=1

syntax

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

Arduino/Genuino Language Syntax EEPROM Storing values in the EEPROM enables you to preserve them between runs. The most useful functions are EEPROM.put(eepromAddress, value) and EEPROM.get(eepromAddress, variable). The values saved and retrieved can be of any type but you have to keep track of the location on the EEPROM where the value resides. The best way is to use the sizeof() function. Start with a pointer set at EEPROM address 0 and increment/decrement it as you go, e.g.

themes

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

Theme information will appear here

timedcontent

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

Artiss Timed Content After installation use the shortcode [timed] around any post or page contents that you wish to appear or expire on a specific date and/or time. Six parameters can be used - ondate, offdate, ontime, offtime, onday and offday. *

usefulplugins

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

Useful plugins for your WordPress site * Lazy Load - Lazy load images to improve page load times. Uses jQuery.sonar to only load an image when it's visible in the viewport. * Hide My Site - Choose a single password to protect your entire wordpress site. Only visitors who know the password will be able to access your wordpress site. This is a great tool for someone setting up a development version of a wordpress site or anyone else looking to hide their site from the public, search engines,…

wikiplugins

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:19+00:00

Plugins Installed on this Wiki * Wrap (examples)

wordpress

Anonymous (anonymous@undisclosed.example.com) — 2020-10-04T08:32:34+00:00

WordPress * Plugins * Artiss Timed Content * Grab & Save * Using the WordPress 3.5 Media Uploader in Your Plugin or Theme * Google Webfonts plugin * Useful plugins for your site * Secure your WordPress site * Protect your .htaccess file * Securing wp-config.php * Disable xmlrpc.php * Prevent directory browsing * Stop web crawlers scanning your WordPrpess site * Themes * Shortcodes * Examples * Determining Plugin and Content Directories * WPBeginn…

wpbeginner

Anonymous (anonymous@undisclosed.example.com) — 2020-09-25T09:58:20+00:00

WPbeginner publishes helpful hints and suggestions every week. Here is a collection of some of the more interesting ones. For more information visit * How to Add Additional User Profile Fields in Registration * How to Add a Full Screen Background Image * How to Show Your Skype Contact and Skype Status * How to Find Royalty Free Images for Your Blog Posts * How to Display Recent Tweets in WordPress with Twitter Widgets * How to Create a “Sticky” Floating S…