Summary to installing Firmata4j for Java projects in EECS 1021: Either one should work fine, but the 2.3.9 version should operate a little more cleanly. When using Maven to load the Firmata4j library you'll can only use up to version 2.3.8 and you'll need to load dependencies in a particular order, as per my earlier […]
Detecting copied source code in student assignments is important. Here, I'll explore a few options that are possible for instructors here at York University, but these options may also work for instructors elsewhere. Look, there are a few notable reasons why copied source code will appear in a student's assignment: Given the convenience of the […]
After my earlier blog post from today, I wanted to verify that I could read single bytes of data from other sensors on the Grove Beginner Kit for Arduino. The next target? The DHT20 sensor. According to the data sheet, I should be able to be able to request a status byte and that that […]
A lot of Arduino projects are meant to always be attached to a PC, transferring data back and forth between the Arduino and the PC. That's why Firmata, a program that sits on the Arduino and allows a program on your PC to remotely read from sensors and buttons and transmit to things like speakers […]
On a recent final exam I had students create a method that could interleave two halves of an array. The original exercise came from a Schaum's Outline book. If you're not careful, by passing values by reference you can have the student's solution pollute the original input test value. To solve this in Java you […]
[This was written specifically for the 2024 edition of the course. Some details may have changed. Please refer to current documentation provided in class. The following is an example of a main project for the EECS 1021 course. While I think that it's important to provide concrete examples it's also important not to provide examples […]
It's important to create test frameworks for your programs. In Java we use the jUnit system to do so. Here is an example of setting up a unit tester to make sure that that a method returns the values it's supposed to. First, let's look at the method. I'm using it to convert values that […]
[updated for Windows ARM users] For students attempting to get the USB drivers working for the Grove Beginner Kit for Arduino please follow these instructions: First: make sure that you're not using the white USB cable. Use a different one. Second: install the USB driver for the board. a) Go to Seeed Studio's wiki: https://wiki.seeedstudio.com/Grove-Beginner-Kit-For-Arduino/ b) […]
The following is an example of the files needed to create a working Virtual Programming Lab exercise for Java: vpl_run.sh vpl_evaluate.sh MainClass.java StudentSolution.java TeacherReferenceSolutions.java TheTestClass.java With this you can evaluate one student submission against a single reference solution. Two methods are run: one is the student's method and one is the teacher's method. The output […]
Before we started using Firmata and Firmata4j in the EECS 1021 class, Richard Robinson and I put together lab activities that used the Fazecast jSerialComm library paired with customized Arduino serial code. The approach is summarized in three videos: Video 1: The Plan for Sending Data to an Arduino We need to send information, in […]