Tag Archives: Python

AI on the Edge LESSON 4: Python Averaging Grades Homework Solution

April 8, 2026 admin

In this video lesson, I show you my solution to the Homework Assignment in LESSON #3. If you were not able to do the homework yourself, you can follow along in the video. Make sure you can do it on your own, without checking back to my solution. You need to understand these basics before moving on the class.

This is my homework solution.

while True:
    bucket = 0
    numGrades = int(input('How Many Grades do you Have: '))
    grades = []
    for i in range(numGrades):
        grade=int(input('Enter Your '+str(i+1)+' Grade '))
        grades.append(grade)
        print('You Entered: ',grade)
    for i in range(numGrades):
        bucket=bucket+grades[i]
    myAverage=bucket/numGrades
    print('Your Grades Are: ')
    for i in range(numGrades):
        print(grades[i])
    print('Your Average is: ',myAverage)

while True:

bucket = 0

numGrades = int(input('How Many Grades do you Have: '))

grades = []

for i in range(numGrades):

grade=int(input('Enter Your '+str(i+1)+' Grade '))

grades.append(grade)

print('You Entered: ',grade)

for i in range(numGrades):

bucket=bucket+grades[i]

myAverage=bucket/numGrades

print('Your Grades Are: ')

for i in range(numGrades):

print(grades[i])

print('Your Average is: ',myAverage)

AI On the Edge

AI on the Edge LESSON 3: Learn Python Essentials In One Session

March 29, 2026 admin

This new class, AI on the Edge, will use Python as the primary programming language. If you are not familiar with python, this video lesson will teach the essentials in one go. Go through the video, and follow the examples. Practice the things in the video, and then do the homework. If you can learn these basics, you should be able to follow along with the balance of the class.

AI On the Edge

AI on the Edge LESSON 2: Raspberry Pi Operating System for Artificial Intelligence

March 29, 2026 admin

The major challenge we face in this AI on the Edge class is getting a Raspberry Pi 5 configures where you have all the AI Models, Libraries, Modules and Methods installed, and where they all play nicely together. Often, when you add a new model, the old model becomes broken. This is because when you install something new, it often times updates the dependencies. That means it updates a library already on your system. For example, lets say you have numpy 14, working with YOLO 11. Now you install mediapipe, and it updates numpy 14 to numpy 15. This then ‘Breaks’ your YOLO, as it wanted a different version of numpy. Likely you will get frustrated and quit before you get the dependency problems solved. In order to get around this, you can use a special education version of the Bookworm OS, which has all the needed libraries installed already and working nicely with each other. The video above shows you how to install this OS. Once you do, no not update it, do not upgrade it, do not touch it. Use it to develop your programs and projects for this class. If you want to do something else with your pi, have a separate SD card.

Python

PyQt Essentials for Absolute Beginners

March 4, 2025 admin

In this Video Lesson we show you how to create a Graphical User Interface to allow you to interact with your python program and hardware projects. The GUI can have buttons, slider bars, radio buttons, drop down menus, and many more widgets. In this lesson we show you how to install the package, and step-by-step instructions on how to use it. For your convenience, here is the code we developed in the lesson.

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import Qt
import time

def greenButtonPressed():
    print("green button clicked")
def yellowButtonPressed():
    print("yellow button clicked")
def redButtonPressed():
    print("red button clicked")
def offButtonPressed():
    print("off button clicked")
def sliderValueChanged(val):
    frequency=val/10
    sliderLabel.setText("Frequency: "+str(frequency)+" Hz")
    print("Frequency: ",frequency)

app = QApplication(sys.argv)
window = QWidget()
window.setWindowTitle("My Grand Widget")
window.setGeometry(100,100,800,600)

widgetBox=QVBoxLayout(window)
buttonBox=QHBoxLayout()

greenButton = QPushButton("Green Button")
greenButton.setStyleSheet("background-color: green; color: white;")
greenButton.clicked.connect(greenButtonPressed)
buttonBox.addWidget(greenButton)

yellowButton = QPushButton("Yellow Button")
yellowButton.setStyleSheet("background-color: yellow; color: black;")
yellowButton.clicked.connect(yellowButtonPressed)
buttonBox.addWidget(yellowButton)

redButton = QPushButton("Red Button")
redButton.setStyleSheet("background-color: red; color: white;")
redButton.clicked.connect(redButtonPressed)
buttonBox.addWidget(redButton)

offButton = QPushButton("Off Button")
offButton.setStyleSheet("background-color: black; color: white;")
offButton.clicked.connect(offButtonPressed)

slider = QSlider(Qt.Horizontal)
slider.setMinimum(1)
slider.setMaximum(40)
slider.setValue(10)
slider.setTickPosition(QSlider.TicksBelow)
slider.setTickInterval(5)
slider.valueChanged.connect(sliderValueChanged)


sliderLabel=QLabel("Frequency: 1.0 HZ")
sliderLabel.setAlignment(Qt.AlignCenter)
sliderLabel.setStyleSheet("font-size: 24px;padding 2px;")

widgetBox.addLayout(buttonBox)
widgetBox.addWidget(sliderLabel)
widgetBox.addWidget(slider)
widgetBox.addStretch()

window.setLayout(widgetBox)
window.show()
sys.exit(app.exec_())

import sys

from PyQt5.QtWidgets import *

from PyQt5.QtCore import Qt

import time

def greenButtonPressed():

print("green button clicked")

def yellowButtonPressed():

print("yellow button clicked")

def redButtonPressed():

print("red button clicked")

def offButtonPressed():

print("off button clicked")

def sliderValueChanged(val):

frequency=val/10

sliderLabel.setText("Frequency: "+str(frequency)+" Hz")

print("Frequency: ",frequency)

app = QApplication(sys.argv)

window = QWidget()

window.setWindowTitle("My Grand Widget")

window.setGeometry(100,100,800,600)

widgetBox=QVBoxLayout(window)

buttonBox=QHBoxLayout()

greenButton = QPushButton("Green Button")

greenButton.setStyleSheet("background-color: green; color: white;")

greenButton.clicked.connect(greenButtonPressed)

buttonBox.addWidget(greenButton)

yellowButton = QPushButton("Yellow Button")

yellowButton.setStyleSheet("background-color: yellow; color: black;")

yellowButton.clicked.connect(yellowButtonPressed)

buttonBox.addWidget(yellowButton)

redButton = QPushButton("Red Button")

redButton.setStyleSheet("background-color: red; color: white;")

redButton.clicked.connect(redButtonPressed)

buttonBox.addWidget(redButton)

offButton = QPushButton("Off Button")

offButton.setStyleSheet("background-color: black; color: white;")

offButton.clicked.connect(offButtonPressed)

slider = QSlider(Qt.Horizontal)

slider.setMinimum(1)

slider.setMaximum(40)

slider.setValue(10)

slider.setTickPosition(QSlider.TicksBelow)

slider.setTickInterval(5)

slider.valueChanged.connect(sliderValueChanged)

sliderLabel=QLabel("Frequency: 1.0 HZ")

sliderLabel.setAlignment(Qt.AlignCenter)

sliderLabel.setStyleSheet("font-size: 24px;padding 2px;")

widgetBox.addLayout(buttonBox)

widgetBox.addWidget(sliderLabel)

widgetBox.addWidget(slider)

widgetBox.addStretch()

window.setLayout(widgetBox)

window.show()

sys.exit(app.exec_())

Python, Raspberry Pi Pico

Sending Data Over WiFi Between Raspberry Pi Pico W and Your PC

February 18, 2025 admin

In this video lesson we show how we can send and receive data between the Raspberry Pi Pico W, and your PC. We will be running python on the PC, and we will exchange data using the UDP protocol. UDP is simple, and a very reliable way to send data packets back and forth. In this example, we will be demonstrating a simple Client Server relationship between the Pi Pico and PC using UDP over WiFi.

For your convenience, this is the “Server” software you will run on the Pi Pico.

import network
import usocket as socket
import secrets
import time

wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect(secrets.SSID,secrets.PASSWORD)

# Wait for connection
while not wlan.isconnected():
    time.sleep(1)
print("Connection Completed")
print('WiFi connected')
print(wlan.ifconfig())

# Set up UDP server
server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
server_socket.bind((wlan.ifconfig()[0], 12345))
print("Server is Up and Listening")
print(wlan.ifconfig()[0])

while True:
    print('Waiting for a request from the client...')
    # Receive request from client
    request, client_address = server_socket.recvfrom(1024)
    print("Client Request:",request.decode())
    print("FROM CLIENT",client_address)
    
    # String to send
    data = "225,128,64"
    
    # Send data to client
    server_socket.sendto(data.encode(), client_address)
    print(f'Sent data to {client_address}')
    
    # Optional: Pause for a short period to prevent overwhelming the client
    time.sleep(1)

import network

import usocket as socket

import secrets

import time

wlan = network.WLAN(network.STA_IF)

wlan.active(True)

wlan.connect(secrets.SSID,secrets.PASSWORD)

# Wait for connection

while not wlan.isconnected():

time.sleep(1)

print("Connection Completed")

print('WiFi connected')

print(wlan.ifconfig())

# Set up UDP server

server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

server_socket.bind((wlan.ifconfig()[0], 12345))

print("Server is Up and Listening")

print(wlan.ifconfig()[0])

while True:

print('Waiting for a request from the client...')

# Receive request from client

request, client_address = server_socket.recvfrom(1024)

print("Client Request:",request.decode())

print("FROM CLIENT",client_address)

# String to send

data = "225,128,64"

# Send data to client

server_socket.sendto(data.encode(), client_address)

print(f'Sent data to {client_address}')

# Optional: Pause for a short period to prevent overwhelming the client

time.sleep(1)

Notice that the above code wants to load a “secrets” file that contain your WiFi name, and password

You should edit the code below with your WiFi username and your password, and then save the file in the Pi Pico lib folder, with the name secrets.py (don’t forget the .py)

SSID="YOUR WIFI NAME"
PASSWORD="YOUR WIFI PASSWORD"

1 2	SSID="YOUR WIFI NAME" PASSWORD="YOUR WIFI PASSWORD"

Now, on the PC side, you will run your client, which will be run in Python. Here is the client software:

import socket
import time

# Set up UDP client
client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
server_address = ('192.168.88.71', 12345)  # Adjust IP address and port as needed

while True:
    # Send request to the server
    request_message = "SEND DATA"
    client_socket.sendto(request_message.encode(), server_address)
    
    # Receive data from the server
    data, addr = client_socket.recvfrom(1024)
    print('Received data:', data.decode())
    
    # Send acknowledgment back to server
    #ack_message = "Data received successfully"
    #client_socket.sendto(ack_message.encode(), addr)
    
    # Wait for 10 seconds before next request
    time.sleep(10)

import socket

import time

# Set up UDP client

client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

server_address = ('192.168.88.71', 12345) # Adjust IP address and port as needed

while True:

# Send request to the server

request_message = "SEND DATA"

client_socket.sendto(request_message.encode(), server_address)

# Receive data from the server

data, addr = client_socket.recvfrom(1024)

print('Received data:', data.decode())

# Send acknowledgment back to server

#ack_message = "Data received successfully"

#client_socket.sendto(ack_message.encode(), addr)

# Wait for 10 seconds before next request

time.sleep(10)

Technology Tutorials

Tag Archives: Python

AI on the Edge LESSON 4: Python Averaging Grades Homework Solution

AI on the Edge LESSON 3: Learn Python Essentials In One Session

AI on the Edge LESSON 2: Raspberry Pi Operating System for Artificial Intelligence

PyQt Essentials for Absolute Beginners

Sending Data Over WiFi Between Raspberry Pi Pico W and Your PC

Making The World a Better Place One High Tech Project at a Time. Enjoy!