Notes, summaries, assignments, exams, and problems for Electronics

Core Artificial Intelligence Concepts

Black Box Models

Black Box Models are systems where the inputs and outputs are known, but the internal process is not transparent. Example: Facial recognition software within a machine learning system.

Deepfakes

Deepfakes refer to AI-generated media, such as fake celebrity videos, created to appear authentic.

Generative AI

Generative AI is technology that changes or generates realistic images, videos, and text. Example: Chatbots.

Large Language Models (LLMs)

Large Language Models are AI systems trained on vast amounts of text to understand and generate human-like language. Example: Grammarly.

Automation and Interaction

Workforce Automation

Workforce Automation involves AI, robots, or software taking over repetitive... Continue reading "Essential Artificial Intelligence Terms and Definitions" »

Features of the MSP430 Microcontroller

• 16-bit RISC Architecture: Offers efficient instruction execution, with most instructions completed in a single clock cycle.
• Ultra-Low Power Consumption: Ideal for battery-powered applications, capable of operating with current in the microampere or even nanoampere range in sleep modes.
• Multiple Low Power Modes (LPM0 to LPM4): Designed for energy-efficient operation using various power-saving configurations.
• Flexible Clock System: Includes internal and external clock sources like DCO (Digitally Controlled Oscillator), VLO (Very Low-frequency Oscillator), and crystal oscillators for accurate timing.
• On-chip Flash Memory: Used to store program code, with sizes up to 512 KB depending on the model.
• On-chip SRAM:

In ground wave propagation, radio waves travel along the surface of the Earth, following the curvature of the planet. Freq Range: 30 kHz to 300 kHz (Low Freq). Key Points: Travels along the ground. Strongly attenuated by terrain, trees, buildings, etc. Limited to short distances (few hundred km). APPS: AM radio (MW band). Navigation systems & military communication.In sky wave propagation, radio waves R transmitted towards the ionosphere, which reflects or refracts them back to Earth. Freq Range: 3 MHz to 30 MHz (High Freq). Key Points: Enables long-distance communication, even intercontinental. Depends on time of day, solar activity, & ionospheric conditions. Reflected by ionospheric layers (F-layer, E-layer, etc.). APPS: International... Continue reading "Understanding Radio Wave Propagation and Signal Processing" »

Phonetic vs. Phonological Perspectives

Looking at syllables from a phonetic point of view is different from the phonological perspective. Phonetically, syllables are described according to how they are produced and how they sound.

A syllable normally has a central part, which has little or no obstruction to the airflow and sounds louder. This central part is usually a vowel. Before and after this centre (that is, at the beginning and end of the syllable), there is more obstruction to the airflow and the sounds are usually less loud.

The Articulatory Approach

One phonetic approach tries to define syllables according to the articulatory effort needed to produce them. The psychologist R. H. Stetson suggested that syllables are related to chest pulses,... Continue reading "Phonetic Analysis of Syllable Structure and Division" »

Polo: Reading Comprehension

1. Choose the Correct Answer

• 1. b. A team usually consists of four players.
• 2. a. Has fewer people in a team than original bicycle polo.

2. True or False

• 1. True - Evidence: "Goals are scored by hitting the ball between two goalposts."
• 2. False - Evidence: "Getting control of the ball isn't easy because ball speeds can reach nearly 180 kph."
• 3. True - Evidence: "Invented in 1891 in Ireland by Richard Mecredy."

3. Complete the Sentences

• 1. A polo horse's abilities greatly influence a player's performance.
• 2. Elephant polo is controversial due to accusations of elephant mistreatment.
• 3. Seattle, Washington, is where the new version of the game, "Hardcourt" bike polo, began.

4. Vocabulary: Find Words in the Text

• 1. Spans
• 2. Basics
• 3.

To control by PWM requires 2 factors:

1-crossing detection signal by 0.

2-? determine the time, every time you walk by 0.

to detect the zero crossing can be performed
through an operational amplifier connected
comparator.

TCA = 785

Pin Symbol Function

1 GND Earth

2 Q2 *Output 2 Inverted

3 Output U QU

4 Q1 * Output 1 Inverted

5 5Synchronizing voltage Vsync (to detect

zero crossing)

6 Inhibitor

7 QZ Z Output

8 8 Vref voltage stabilized (continuous signal for the

integrator)

9 9 ramp resistor R9 (for the integrator)

10 C10 ramp Capacitance (for the integrator)

11 11 V11 Control Voltage (for comparator)

12 12 C12 pulse Extension

13 LLong pulse

14 Q1 Output 1

15 Q2 Output 2

16 l sSupply voltage.

Preprocessing the Dataset

a. Normalize the Text

Python

import re
from nltk.tokenize import word_tokenize
import nltk
nltk.download('punkt')

# Preprocessing Function
def preprocess(text):
    text = re.sub(r'[^a-z\s]', '', text.lower())
    return word_tokenize(text)

# Apply Preprocessing
df['Processed'] = df['Sentence'].apply(preprocess)
print(df)

GPT-2 Text Generation

Python

from transformers import pipeline

# Load GPT-2 Model for Text Generation
generator = pipeline('text-generation', model='gpt2')

# Generate Text for a Given Prompt
prompt = "Once upon a time"
result = generator(prompt, max_length=50,
    num_return_sequences=1)
print(result[0]['generated_text'])

GPT-2 for AI Prompts

a. Prompt 1 - Future of AI

Python

prompt = "What is the future

Role of the Teacher

• Facilitator: Guides learning / Guía el aprendizaje
• Fosters autonomy: Fomenta autonomía
• Student-centered classes
• Scaffolding and positive feedback
• Avoids pressure: Evita presión y juicios negativos

Classroom Management

• Maintain order and attention
• Clear routines
• Attention-grabbers
• Change activities every 15–20 minutes
• Use of different spaces
• Positive reinforcement and autonomy

Communicative Language Teaching

• Communicative approach: Enfoque comunicativo
• Meaningful language: Lenguaje con significado
• Real-life situations
• Use of language to communicate

4 Dimensions of Communicative Competence

1. Linguistic: Vocabulario, gramática, sintaxis
2. Sociolinguistic: Normas sociales, cultura
3. Discourse: Cohesión y coherencia
4. Strategic: Compensar fallos, estrategias

Key to Artificial Intelligence Assessment

(A) Comprehension (4 points)

a) Answer Questions 1–2 According to the Information Given in the Text.

1) Why has AI investigation been successful recently?

Because they have incorporated meaning and language use in the process of translation.

2) How can programmers improve computer translators?

By studying the human process for understanding.

b) Are These Statements True or False? (0.5 points per answer)

3) Artificial Intelligence has been a recent target in computer science.

FALSE. ... Artificial intelligence is an area of research that goes back to the very beginnings of computer science. (line 1)

4) Human chess players can defeat chess programs.

TRUE. ... Chess programs can defeat almost all best human players.

Innovation: Definition and Core Concepts

Innovation is the successful exploitation of new ideas. It encompasses the technical, design, manufacturing, and commercial activities involved in the marketing of a new process or equipment. It is the practical implementation of an idea into a new device or process. Innovation is a specific tool of entrepreneurs, serving as the means by which they exploit change as an opportunity for a different business or service. Note that innovation and invention are not the same things.

Types of Innovation

• Technological innovation: Improving a product’s functionalities or reducing its production cost relative to the state of the art, through the application of knowledge and competencies to tangible features of the