Minutes of Meetup - 23 Nov 2019

ChennaiPy November 2019 Meetup - Meeting Minutes

The meetup took place on November 23, 2019 at Chennai.

Speaker: Rengaraj D

Problem Statement: Automating the testing of an intruder detection alarm system.
Components:
TI Programmable Microcontroller: Used in the system under test.
Reed Switch: Detects if the door is open.
Multicolor LED: Used as an output indicator.
Demo:
Automated testing using Energia electronics prototyping IDE and Robot Framework.
The initial test failed due to a bug in the intruder detection logic.
After fixing the bug, the tests passed successfully.
Test Case Modelling:
Ensuring system initialization to avoid false positives or negatives in test cases.
Using GPIO Python interface for simulating inputs and reading outputs.

Speaker: Vijay Kumar

Scratch: A programming interface to help young people think creatively.
Demo:
Animated a ball bouncing around the corners of a box.
Created a program that emulated a paddle and bouncing ball.
Scratch Programming: Easy for kids to learn with systemic thinking.
Python VM: Vijay created a Python VM to run disassembled Scratch programs, transforming kids' Scratch abilities into Python programming.
Scratch2py: Allows Python code to coexist with Scratch programs, bridging the gap between Scratch and Python.

Speaker: Ashok G

History: Data compression is influenced by early inventions like Morse code and Claude Shannon’s work in Information Theory.
Need for Compression: Essential in Machine Learning and Deep Learning to minimize storage and transmission costs.
Huffman Encoding: Explained how it reduces the size of text data using probability calculations to assign shorter codes to more frequent characters.
Wireless Transmission: Emphasized the need for data compression to make better use of the transmission medium (air).

The meetup concluded with interesting discussions and a networking session.

Meeting minutes contributed by Saravanan K.

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