![Clyde Lettsome, PhD, PE](/img/default-banner.jpg)
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Clyde Lettsome, PhD, PE
United States
Приєднався 15 чер 2010
Dr. Lettsome is a digital signal & image processing, digital communications, and computer design expert with over 20 years of technical, business, education, and research experience. He is a Senior Member of the Institute of Electrical and Electronic Engineers (IEEE) and is a licensed professional engineer (PE) in the states of:
- Florida,
- Georgia,
- and South Carolina .
Dr. Lettsome received degrees in electrical engineering from the Florida Institute of Technology (BS and MS) and a degree in electrical and computer engineering from the Georgia Institute of Technology (PhD). He also received a degree in engineering management from the Florida Institute of Technology (MS) and was a visiting student scholar at Purdue University where he performed research.
In 2004 he was recognized as an outstanding graduate student instructor by the School of Electrical and Computer Engineering at the Georgia Institute of Technology.
- Florida,
- Georgia,
- and South Carolina .
Dr. Lettsome received degrees in electrical engineering from the Florida Institute of Technology (BS and MS) and a degree in electrical and computer engineering from the Georgia Institute of Technology (PhD). He also received a degree in engineering management from the Florida Institute of Technology (MS) and was a visiting student scholar at Purdue University where he performed research.
In 2004 he was recognized as an outstanding graduate student instructor by the School of Electrical and Computer Engineering at the Georgia Institute of Technology.
My Weekend Project: Musical Note Detector Using An Arduino
This project shows an Arduino project that displays the approximate frequency as well as the musical note played on an electronic keyboard or piano app. For this project, the analog output from the sound module detector is sent to the A0 analog input of the Arduino Uno. The analog signal is sampled and quantized (digitized). Autocorrelation, weighting and tuning code is used to find fundamental frequency using the first 3 periods. The approximate fundamental frequency is then compared to frequencies in octaves 3, 4, and 5 range to determine the closest musical note frequency. Finally the guessed note for the closest frequency is printed to the screen.
Schematics and code available for free at: clydelettsome.com/blog/2020/06/07/my-weekend-project-musical-note-detector-using-an-arduino/
If you have questions, please visit clydelettsome.com/blog/ask-the-expert/ .
Schematics and code available for free at: clydelettsome.com/blog/2020/06/07/my-weekend-project-musical-note-detector-using-an-arduino/
If you have questions, please visit clydelettsome.com/blog/ask-the-expert/ .
Переглядів: 9 988
Відео
My Weekend Project: Audio Frequency Detector Using An Arduino
Переглядів 58 тис.4 роки тому
This Arduino project displays the approximate frequency of the loudest sound detected by a sound detection module. For this project, the analog output from the sound module detector sends the analog audio signal detected to A0 of the Arduino Uno. The analog signal is sampled and quantized (digitized). A Fast Fourier Transform (FFT) is then performed on the digitized data. The FFT converts the d...
How To Read Capacitor Values
Переглядів 13 тис.4 роки тому
In this video I discuss how to read capacitor values and codes on capacitors. These value codes include: 1) Capacitance value codes 2) Tolerance value codes 3) Rated voltage value codes 4) Temperature characteristic values codes Note: To ask questions, please visit my site at clydelettsome.com/blog/ask-the-expert/
Inside Measurements Using Vernier Caliper
Переглядів 6 тис.4 роки тому
In this video, I demonstrate how to use manual vernier calipers to measure the inner space or dimensions of an object.. Significant figures is also discussed.
My Weekend Project: Sound Location Finder
Переглядів 15 тис.4 роки тому
In this video, I create a sound location finder using two microphone sensors in conjunction with an Arduino Uno. When the sound location finder circuit detects a sound from one microphone sensor and not the other, the Arduino request a stepper motor to turn the sound detection board in the direction of the sound. If the sound is detected in both microphones or no sound is detected, the circuit ...
My Weekend Project: Sound Direction Tester
Переглядів 7 тис.5 років тому
In this video, I test two DAOKI microphone sensors with my Arduino Uno to create a sound direction tester. If you have questions, please visit clydelettsome.com/blog/ask-the-expert/ .
Wire Wrapping Basics
Переглядів 3,1 тис.5 років тому
In this video, I discuss how to wire wrap and unwrap an electronic circuit. This method may be used as a way to create a cheap, quick, and semi-permanent method for connecting an electronic circuit if you do not want to create a more expensive and time consuming PC board. If you have questions, please visit clydelettsome.com/blog/ask-the-expert/ . If you have questions, please visit clydelettso...
My Weekend Project: Restoring An Old Atari 2600
Переглядів 4135 років тому
As a kid, I would look inside electronic items trying to understand how they work. As an engineer, I have a good idea of how they work and can restore them to working condition if necessary. In this video, I restore an old Atari 2600 I owned as a kid. Follow me as I do so and look back at the quality of the graphics. Note: The two issues I found are very common problems with old video gaming sy...
Increasing Website Visibility and Ranking
Переглядів 4075 років тому
In this video I explain how I was able to raise my website visibility and ranking by 92% in a little under 8 months.
Why I have not purchased a smart phone.
Переглядів 3565 років тому
In this video I address the question I receive the most. The question is why I do not have a smart phone.
Certified Electronic Technician CET Exam Prep Flash Cards - Generators Alternators and Motors
Переглядів 7885 років тому
These flash cards will help viewers planning to take the ETA Associate-Level Exam and the ISCET Associate-Level Exam prepare for the exam. Note: To ask questions, please visit my site at clydelettsome.com/blog/ask-the-expert/
What we can learn from the Nancy Pelosi doctored video.
Переглядів 3225 років тому
The video says it all. Related video: ua-cam.com/video/dj7ZKclxu18/v-deo.html
DIY - Digital TV Antenna Direction Finder Project
Переглядів 2,7 тис.5 років тому
This is the final results of the working digital tv antenna pointer. Free diy plans at clydelettsome.com/blog/2019/05/14/motorized-digital-tv-antenna-mount-aka-digital-tv-antenna-pointer/
Guess what is inside!
Переглядів 735 років тому
Guess what is in the box. Hint: Thanks to those that helped me pick a new tagline!
Certified Electronic Technician CET Exam Prep Flash Cards - Communication Systems
Переглядів 4,5 тис.5 років тому
These flash cards will help viewers planning to take the ETA Associate-Level Exam and the ISCET Associate-Level Exam prepare for the exam. Note: To ask questions, please visit my site at clydelettsome.com/blog/ask-the-expert/
My Weekend Projects: Motorized Digital TV Antenna Mount Part 6 (Power Supply and Lazy Susan)
Переглядів 6665 років тому
My Weekend Projects: Motorized Digital TV Antenna Mount Part 6 (Power Supply and Lazy Susan)
Certified Electronic Technician CET Exam Prep Common Semiconductor Packages Flash Cards
Переглядів 7675 років тому
Certified Electronic Technician CET Exam Prep Common Semiconductor Packages Flash Cards
C A Lettsome Services, LLC Online Commercial 4-7-2019
Переглядів 1,9 тис.5 років тому
C A Lettsome Services, LLC Online Commercial 4-7-2019
Certified Electronic Technician CET Exam Connectors
Переглядів 9045 років тому
Certified Electronic Technician CET Exam Connectors
Video Editing: How to Speed Up / Slow Down a Video For Free (Windows)
Переглядів 1,6 тис.5 років тому
Video Editing: How to Speed Up / Slow Down a Video For Free (Windows)
My Weekend Projects: Motorized Digital TV Antenna Mount Part 5 (Bluetooth HM-10)
Переглядів 1955 років тому
My Weekend Projects: Motorized Digital TV Antenna Mount Part 5 (Bluetooth HM-10)
Certified Electronic Technician CET Exam Transmission Mediums
Переглядів 7005 років тому
Certified Electronic Technician CET Exam Transmission Mediums
My Weekend Projects: Motorized Digital TV Antenna Mount Part 4 (A4988 Microstepper)
Переглядів 2775 років тому
My Weekend Projects: Motorized Digital TV Antenna Mount Part 4 (A4988 Microstepper)
Certified Electronic Technician CET Exam Prep Safety
Переглядів 1,5 тис.5 років тому
Certified Electronic Technician CET Exam Prep Safety
Generating An Arbitrary Waveform with the Siglent SDG 1032X
Переглядів 1,8 тис.5 років тому
Generating An Arbitrary Waveform with the Siglent SDG 1032X
Unboxing the A4988 Motor Driver and C2541 (HM-10) Bluetooth Tranciever
Переглядів 1735 років тому
Unboxing the A4988 Motor Driver and C2541 (HM-10) Bluetooth Tranciever
Certified Electronic Technician CET Exam Prep Mathematics Flash Cards
Переглядів 8315 років тому
Certified Electronic Technician CET Exam Prep Mathematics Flash Cards
Beginners Guide to Arbitrary Waveform Generators (using the SDG 1032X)
Переглядів 15 тис.5 років тому
Beginners Guide to Arbitrary Waveform Generators (using the SDG 1032X)
Certified Electronic Technician CET Exam Prep Power Supplies Flash Cards
Переглядів 2 тис.5 років тому
Certified Electronic Technician CET Exam Prep Power Supplies Flash Cards
Beginners Guide to Function Generators
Переглядів 19 тис.5 років тому
Beginners Guide to Function Generators
wow
Hi, I have just tried this and several other projects that use FFTand always get this error, I am using the latest "arduinoFFT" library 2.0.2 by Enrique Condes : error: Compilation error: 'arduinoFFT' does not name a type; did you mean 'ArduinoFFT'?
@CALettsomePhDPE - is there any way to extend this for analyzing and detecting a specific sound in the array of sounds? and what needs to be done to make it 360-degree capable? add 2 more mics and place them in a circle for every 90 degrees? am I thinking correctly? Awesome video
Re-establishing fundamentals for the Power PE after a few years of industry work and I found a video uploaded by an alumnus of Georgia Tech with a mind-blowing background. I am so glad that I found your ece videos because your videos truly shine in a sea of low-quality and/or unreliable educational materials.
Thank you for the clearest explanaton I've seen!
Such a clear explanation.God bless you, sir !
every body know multimeter brand and model?
Sehr gut
This video is so much better than all the videos I saw on you tube until this time 🙏thank you sir
How is this applied, and to what? Can it be applied to sound, and how? Thanks for taking an extra step to explain!.
Nice video, thank you. I just purchased this generator this video is very helpful.
This is awesome
Excellent!
9 years later and it is still helpfull thx doc :)
Is it just me or none of these videos have audio? 🔉
My OFFSETSAMPLES are all always zero (I'm really not sure why- maybe this is why my frequency results seem almost random). I'm using the same analog audio module, I've calibrated the potentiometer very well to where the sensor LED only comes on at all with so little as a finger tapping on the table, I have double-checked that my wiring is the same as in the video, and have copy-pasted the program from the website. Do I need to use an external pulldown resistor since this is an analog input? If so, what value approximately?
can you demonstrate this via a spectrum analyzer? I was hoping to see all the frequency components of a given signal
My GW multimeter gdm 393 not working scrin fuge open after scrin work
hello sir, is it possible for me to reach out to you for help with a circuit? i have a very complex circuit on paper but i just cannot make an actual circuit out of it
Great explanation. Thanks for posting!
Worked for me, thx 😎
What was the version of the arduinoFFT library you added when you made this video, the latest version seems that it is not working
same problem here, did you find a solution?
@@gururajk9702 After several error_codes .... finally, it was compiled, but it doesn't work
Install version 1.50
My old Motor Chief Warrant Officer used the KISS moniker as well. Lol.
Thank you for doing a great video!
This video really helped me out, thank you for the step by step breakdown
how can I get the instantaneous output received from a Arduino mic, as I do not wanna use SD, pre-loaded MP3, WAV or any other stored data. I need live IP to OP.
This literally saved me my god you made it so easy to understand
Your work is not clear.
Have a question? What is the purpose of removing the other end of the resistor to a different hole when checking current?
To break the circuit
so that all electrons flowing through the circuit must also go through the ammeter
Thanks sir
stupid man , i want know multimeter brand and model😡
Very nice
Thank you for the informative video, If the equipment errors is larger than the standard deviation? how do we write the uncertainty value for the final results?
6 grade school talk
Want the hand brake light switch not foot brake
Is there a difference between standard uncertainty and uncertainty or are they the same thing
Awesome work man.
Thank you for a very informative video. I especially liked that you showed that some of the insulation was also wrapped around the bottom of the pin as this adds strength to the wire so it has less of a chance to break due to vibration or other movement.
Thankyou.It was helpful
If both separate channels are connected in series, won't the zero center be drawn to the terminals CH1+ and CH2-? The connection will certainly occur, but it may not be output to the output terminals and this will only double the voltage of the sum of both channels. But if the center of the connection of both channels is brought out to the output terminal (mostly channel CH1-), it is much easier and no jumpers are needed.
In order to make the program display how close the played note was to the closest match in the storedNoteFreq array, I added the following in the section you titled "Find the closest note": noteLocation = i; cents = 1200 * log(storedNoteFreq[i]/signalFrequencyGuess)/log(2); if (cents < 0) { flatSharp = "flat"; cents = -cents; } else if (cents > 0) { flatSharp = "sharp"; } else if (cents = 0) { flatSharp = ""; } I then had this display in the printed output as... Serial.println(octaveRange); if (cents == 0) { Serial.println("You nailed it!") } else if (cents <> 0) { Serial.print("You were "); Serial.print(cents); Serial.print(" cents "); Serial.print(flatSharp); Serial.println("."); } What do you think? (NOTE: Don't forget to add "int cents = 0;" and String flatSharp = "";" to the variables at the very beginning.)
I think it would be very helpful to make the program take a sound sample during the countdown to determine the ambient noise level, set a volume threshold based on this, and then when cued have it iterate repeatedly through the available sampling memory for even half of a second, sensing for when a sample’s amplitude exceeds the threshold.
THIS IS INSANE CLYDE LETTSOME!!!!!!!! LOVE FROM NORWAY
Why are you doing this
Scopes are really tricky bits of kit. Especially at first. We just started using them in lab a week or so ago and the instructor was just kind of like “figure it out”
Very helpful and easy to understand for beginner's like me. Many thanks.
Why is the music SO LOUD?
Thank u.
Very vague diode testing,should show a bad diode too
Hi Sr. Its all the cards that we need study for eta certificate?