Recent Updates:

October 2019 Updates

Modified: 31 October, 2019

Blog updates during October 2019.

Jupyter

Modified: 28 October, 2019

A tutorial on Jupyter Notebooks and Jupyter Labs.

Modified: 26 October, 2019

An introduction to rotation matrices. What they are, how to calculate them, and what they are useful for!

Modified: 14 October, 2019

A tutorial on quaternions, including calculators to convert between quaternions, rotation matrices and axis-angle notations.

Modified: 11 October, 2019

Shortcuts, key bindings, compiling C/C++ and more info about the Visual Studio Code IDE.

2015

Date Published:	November 29, 2015
Last Modified:	November 29, 2015

New DIACs page under Electronics->Components.
New Light Dimmers page under Electronics->Circuit Design.
New TRIACs page under Electronics->Components.
New Optical Isolators page under Electronics->Components.
A commonly used symbol for a standard optical isolator.
New SOT-89 Component Package page under PCB Design->Component Packages.
A 3D render of the SOT-89 (SC-62, TO-243) component package. Image from http://www.digikey.com/.
New Control Statements page under Programming->Languages->C.
New Tools section under Electronics.
New Flux page under Electronics->Tools.
The Javascript page was moved from under Website Design to under Programming Languages.
New Varistors page under Electronics->Components.
The schematic symbol for a varistor (a.k.a. voltage-dependent resistor, VDR).
Updates to the Ferrite Beads page.
Updates to the LEDs page (including the addition of section on pulse extending for LEDs).
The schematic for a LED pulse width extending circuit. It converts a short pulse that would not be seen into a longer pulse which is visible.
Updates to the SOT-363 Component Package page.
Updates to the Comparators page.
New Mouse Bites page under Electronics->PCB Design.
A four-hole mousebite on the side of a PCB.
New D-subminiature page under Electronics->Components->Connectors.
One of the most commonly used D-sub connectors of this era, the 9-pin female PCB-mount DE-9 connector.
New Headers page under Electronics->Components->Connectors.

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