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VPL: Circuit Simulation Assignments with SPICE

Introduction In YorkU's EECS Department, we have access to NGSPICE on our department's Linux machines (via RemoteLab). NGSPICE is yet another variation on the venerable SPICE circuit simulator. Our the University's Moodle system, eClass, we have access to Virtual Programming Lab, a framework for making interactive exercises for students. It is typically used with programming […]

Open letter about COVID-related air quality in an elementary school

Executive Summary The current portable air filter setup at CS Viamonde’s La Mosaïque (LAMO) [Viamonde is the French public school board in Toronto; LAMO is its largest elementary school] does not meet the minimum set of recommendations based on the latest scientific and engineering results related to the mainly aerosol nature of COVID19.   Children in […]

Update on Ventilation at YorkU (Aug. 17, 2021)

Introduction COVID has changed everything about campus life. In order to maximize the safety of students, staff and faculty at York University, we, as a community, need to focus on multiple factors, including: Vaccinations Ventilation (and air filtering) Masking Progressive work / study policies Last week, our university partially caved to pressure from the YorkU […]

VPL: Simple C Assignment with Unit Testing

August 2021 Background Here, we're going to apply ThrowTheSwitch's Unity unit test framework to C programs. The test framework is available on GitHub. Three files need to be downloaded from the GitHub. There are a few more files that need to be developed within VPL to make it work, and those are described below. We're […]

VPL: Using Maple for Math Assignments

One of the places that Moodle falls down in is in supporting math assignments. It occurred to me that we could treat math assignments like we do programming assignments by extending the Virtual Programming Lab plugin for Moodle to support Maple. This doesn't replace existing products like the Maple / DigitalEd Möbius platform, nor does […]

VPL: Basic Custom Evaluation Example

Sometimes you need to go beyond the default settings in VPL. That means creating a custom "run" and "evaluate" setup. Here, I'll simplify a great example by Dominique Tiebaut, Emeritus prof at Smith College, written for an assignment in C. (archive) We'll check a "hello world" example in C, but won't use the default evaluate.cases […]

Debuggers, MPLAB X and the Arduino

This page is about programming ATMEGA328 chips, like the one found on the Arduino UNO, using modern (post 2015) tools like MPLAB X and the Snap or PICKit4 debuggers. As of July 2021 there is a little hiccup in how to do this. Hopefully in the future Microchip will fix the issue and render this […]

VPL: Simplest Working Example

Virtual Programming Lab can be a little intimidating to use, but once you get the swing of things, it's pretty good. So, let's get you started with the simplest possible working example. We assume that: you have Moodle working at your institution someone has installed VPL on Moodle and you don't need or have access […]

Pedagogy in a Pandemic: Teaching without Exams

This is the first semester that I've taught 100% online.  The Fall 2020 lockdown and the YorkU strike in 2018 gave me a taste of what it would be like and alerted me to the need for restructuring of my classes in order to make them more favourable to learning.  During the pandemic, students are struggling but […]

Modifying an Arduino for MPLAB X

To allow the UNO to be programmed by the PICKit 4 via the ICSP header (circled in blue, below), we need to cut the reset signal trace that links the '328P processor to the USB Bridging chip that is also found on the UNO, the MEGA16U2. There are also two other wires that we won't […]