Tag Archives: Raspberry Pi 5

In this video lesson I show you how to make your Pi Project talk to you using Text to Speech (TTS). We will use the Piper Model which gives good clear voice, and a choice from a large number of different models.

In this lesson I show you my solution to the Homework assigned in LESSON #8.

In this lesson we demonstrate this program, which makes the Pi talk, through the Fusion HAT+ speaker. The homework was to create a program that smoothly adjust the brightness of an LED using a potentiometer. The project was also to speak to the user, indicating what brightness the LED was set at.

This is the schematic we are using on these projects;

Fusion Hat Circuit Diagram — This is the circuit we will use moving forward in the class

This Schematic is explained in detail in LESSON #5.

Then this is the code we developed in today’s lesson.

from fusion_hat.adc import ADC
from fusion_hat.pwm import PWM
from fusion_hat.tts import Piper
from time import sleep
tts = Piper()
tts.set_model('en_US-amy-low')
potPin = 0
myPot = ADC(potPin)
redPin = 5
redLED = PWM(redPin)
rangeOld = 100

while True:
    potVal = myPot.read()
    writeVal=100*(potVal/4095) - .005
    if writeVal < 1:
        msg = "Your LED is Off"
        range = 0
    if writeVal >=1 and writeVal<10:
        msg = "Your LED is Brightness 1"
        range =  1
    if writeVal >=10 and writeVal<20:
        msg = "Your LED is Brightness 2"
        range=2
    if writeVal >=20 and writeVal<30:
        msg = "Your LED is Brightness 3"
        range=3
    if writeVal >=30 and writeVal<40:
        msg = "Your LED is Brightness 4"
        range=4
    if writeVal >=40 and writeVal<50:
        msg = "Your LED is Brightness 5"
        range=5
    if writeVal >=50 and writeVal<60:
        msg = "Your LED is Brightness 6"
        range=6
    if writeVal >=60 and writeVal<70:
        msg = "Your LED is Brightness 7"
        range=7
    if writeVal >=70 and writeVal<80:
        msg = "Your LED is Brightness 8"
        range=8
    if writeVal >=80 and writeVal<90:
        msg = "Your LED is Brightness 9"
        range=9
    if writeVal >=90 and writeVal<99:
        msg = "Your LED is Brightness 10"
        range=10
    if writeVal >=99:
        msg = "Your LED is full Brightness"
        range=11
    if rangeOld != range:
        tts.say(msg, stream = False)
    rangeOld=range
    redLED.pulse_width_percent(int(writeVal))
    sleep(.1)

from fusion_hat.adc import ADC

from fusion_hat.pwm import PWM

from fusion_hat.tts import Piper

from time import sleep

tts = Piper()

tts.set_model('en_US-amy-low')

potPin = 0

myPot = ADC(potPin)

redPin = 5

redLED = PWM(redPin)

rangeOld = 100

while True:

potVal = myPot.read()

writeVal=100*(potVal/4095) - .005

if writeVal < 1:

msg = "Your LED is Off"

range = 0

if writeVal >=1 and writeVal<10:

msg = "Your LED is Brightness 1"

range = 1

if writeVal >=10 and writeVal<20:

msg = "Your LED is Brightness 2"

range=2

if writeVal >=20 and writeVal<30:

msg = "Your LED is Brightness 3"

range=3

if writeVal >=30 and writeVal<40:

msg = "Your LED is Brightness 4"

range=4

if writeVal >=40 and writeVal<50:

msg = "Your LED is Brightness 5"

range=5

if writeVal >=50 and writeVal<60:

msg = "Your LED is Brightness 6"

range=6

if writeVal >=60 and writeVal<70:

msg = "Your LED is Brightness 7"

range=7

if writeVal >=70 and writeVal<80:

msg = "Your LED is Brightness 8"

range=8

if writeVal >=80 and writeVal<90:

msg = "Your LED is Brightness 9"

range=9

if writeVal >=90 and writeVal<99:

msg = "Your LED is Brightness 10"

range=10

if writeVal >=99:

msg = "Your LED is full Brightness"

range=11

if rangeOld != range:

tts.say(msg, stream = False)

rangeOld=range

redLED.pulse_width_percent(int(writeVal))

sleep(.1)

AI On the Edge

AI on the Edge LESSON 6: Digitial Out, Servos, Analog In and PWM on the Fusion HAT+

April 15, 2026 admin

In this video lesson we will become familiar with the FUSION AI HAT+, and we will learn how to do digital inputs and outputs, analog in readings, analog outputs, PWM and how to control servos. By the end of the lesson you should have the essentials you need to work with the Fusion HAT+. The schematic for the circuit we will be using in today’s lesson if below. We describe it in more detail in the video. The schematic is:

In the video lesson we demonstrated the following programs:

Digital output to blink an LED:

from fusion_hat.pin import Pin, Mode
import time
LEDPin=17
redLED = Pin(LEDPin,mode=Mode.OUT)
while True:
    
            redLED.high()
            time.sleep(.1)
            redLED.low()
            time.sleep(.1)

from fusion_hat.pin import Pin, Mode

import time

LEDPin=17

redLED = Pin(LEDPin,mode=Mode.OUT)

while True:

redLED.high()

time.sleep(.1)

redLED.low()

time.sleep(.1)

PWM Example to Control RGB LED Color and Brightness.

from fusion_hat.pwm import PWM
from time import sleep

redPin = 5
greenPin = 6
bluePin = 7

redLED = PWM(redPin)          
greenLED=PWM(greenPin)
blueLED=PWM(bluePin)
redLED.freq(200)
greenLED.freq(200)
blueLED.freq(200)

while True:
    for bright in range(0, 101, 1):
        redLED.pulse_width_percent(bright)
        sleep(0.01)
        print(bright)
    for bright in range(99, 0, -1):
        redLED.pulse_width_percent(bright)
        sleep(0.01)
        print(bright)

from fusion_hat.pwm import PWM

from time import sleep

redPin = 5

greenPin = 6

bluePin = 7

redLED = PWM(redPin)

greenLED=PWM(greenPin)

blueLED=PWM(bluePin)

redLED.freq(200)

greenLED.freq(200)

blueLED.freq(200)

while True:

for bright in range(0, 101, 1):

redLED.pulse_width_percent(bright)

sleep(0.01)

print(bright)

for bright in range(99, 0, -1):

redLED.pulse_width_percent(bright)

sleep(0.01)

print(bright)

Reading Analog Voltages on the Pi 5 Using the Fusion HAT+

from fusion_hat.adc import ADC
from time import sleep

potPin=0
myPot = ADC(potPin)       # A0–A3 on HAT

while True:
    analogIn = myPot.read()
    voltage=analogIn*(3.3/4095)
    print("Analog In: ",analogIn,"Voltage: ",round(voltage,2))
    sleep(0.1)

from fusion_hat.adc import ADC

from time import sleep

potPin=0

myPot = ADC(potPin) # A0–A3 on HAT

while True:

analogIn = myPot.read()

voltage=analogIn*(3.3/4095)

print("Analog In: ",analogIn,"Voltage: ",round(voltage,2))

sleep(0.1)

Controlling Servos With the Fusion AI HAT+

from fusion_hat.servo import Servo   # Import the Servo class for controlling servos
import time
# Import sleep for timing delays
panPin=2
tiltPin=3
servoPan = Servo(panPin)
servoTilt=Servo(tiltPin)
servoPan.angle(0)
servoTilt.angle(0)

from fusion_hat.servo import Servo # Import the Servo class for controlling servos

import time

# Import sleep for timing delays

panPin=2

tiltPin=3

servoPan = Servo(panPin)

servoTilt=Servo(tiltPin)

servoPan.angle(0)

servoTilt.angle(0)

AI On the Edge

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.

Technology Tutorials

Tag Archives: Raspberry Pi 5

AI on the Edge LESSON 9: Make Your Raspberry Pi Talk with TTS

AI on the Edge LESSON 6: Digitial Out, Servos, Analog In and PWM on the Fusion HAT+

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

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