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.

2016

Date Published:	April 30, 2016
Last Modified:	April 30, 2016

Added information about multiple-collector and multiple-emitter BJTs.
The schematic of a basic two-input TTL NAND gate.
Information added on using low-pass RC filters for making a VDAC from a PWM source.
Added information about the 10-bit I2C addressing scheme.
New How To Calculate Track Current page under the PCB Design section of the website, with information, equations, and more info on how to calculate the maximum current a track (a.k.a. trace) on a PCB can take.
New NTC Thermistor Temperature Sensing page with information on PTC and NTC thermistors, including how to connect them up to a microcontroller for temperature measurements.
A screenshot of the NTC thermistor page.
New MicroBlaze page under Programming->Microcontrollers.
New Z-Wave page under Electronics->Communication Protocols.
New information about the common-collector BJT amplifier.
The basic schematic of a common-collector BJT amplifier.
including simulation results…
Vout vs. Vin for a basic common-collector BJT amplifier.
Information added about making constant-current LED drivers using BJTs.
The simulation schematic for a constant-current BJT-based LED driver.

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