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Kevin333
(@kevin333)
Active Member
Joined: 2 months ago
Posts: 11
2020-10-27 9:36 am  

Thanks Joel

I hope so

Kevin


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Art01073
(@art01073)
New Member
Joined: 2 months ago
Posts: 2
2020-10-27 10:48 am  

@joelyddon

Hi Joe,

Thanks for the Welcome. I am familiar with the Arduino and own 3 of them. I just finished the Intro to the ESP32 CAM project and enjoyed it. I am going to start on the variable power supply project next. Look forward to additional new projects.

Art


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rida
 rida
(@rida)
Active Member
Joined: 2 months ago
Posts: 6
2020-10-28 9:44 am  

@joelyddon thanks a lot 


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Foxy
 Foxy
(@foxy)
Eminent Member
Joined: 1 month ago
Posts: 27
2020-11-01 3:45 pm  

Introduce myself ???

I'm an old geezer  88.917 years,  retired electrical engineer with most experience in heavy industry variable speed drives and other control systems.

I think I got into playing with Arduino, etc. because my daughter gave me a kit for Christmas some years ago probably to keep the old man busy.

Projects include, in the distant past an oven for recovery of used plastics and to form it into usable structural parts, and a small electric furnace undertaken because I inherited the parts.  These both worked very well, got good temperature control via thermocouples and display via LCD screens.

More recently several dark field illuminators for a microscope.  These use the Adafruit neopixel programmable LED's and give very good illumination with the big advantage of little or no heat which has been a problem in the past.  They also give control of the illumination colour, which was not conveniently available in the past and should have use in coloured gem stone identification.  My daughter, who is a physicist/mineralogist/gemmologist is experimenting with this now.

Also for her, specific gravity measurement apparatus using strain gauge load cells, a load cell amplifier, Arduino UNO and LCD display.  Two were made, one rated 100 gm and the other 5 kg.

That's about it it for now; the covid business has slowed down the serious development work.

Ken

 


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everythingiscopy
(@everythingiscopy)
Active Member
Joined: 3 months ago
Posts: 6
2020-11-01 3:51 pm  

@foxy Welcome aboard, Ken. Your projects are quite impressive sounding. I can hardly figure out how to get a stepper motor to turn 180 degrees. If any one deserves to be a guest on Bill's YouTube channel, I believe it's you. I'll be interested in seeing future projects from you, and your daughter. 

Cheers -


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Rooster
(@rooster)
New Member
Joined: 1 month ago
Posts: 4
2020-11-02 11:10 am  

So a little about me...I'm a noob in the electronics world but am very interested...I purchased a starter kit and have done a few experiments on the old breadboard so far...I have watched a whole bunch of YouTube videos and am about to buy a textbook on electronics. 

Well I'm not sure where to start here, but I'm an absolute beginner so I'll start at the beginning!   Conventional flow vs electron flow?  

I'm fine with the idea that we use conventional flow in order to simplify our math...where I get confused is when they say it doesn't really matter which way the flow is going...I could see that being true for circuits comprised of resistors and non-polar components, but for more realistic circuits with polar components, I would think that knowing the actual direction of current flow would be very important to the design process.  

Please throw me a lifeline here - thanks.


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barefoot_engineer
(@barefoot_engineer)
New Member
Joined: 1 month ago
Posts: 3
2020-11-02 7:35 pm  

Hi. My name is Eli, and I'm 8 years old. I like electronics and programming with Arduino.

My parents got me an Arduino set last Christmas, and I've made all sorts of projects with it. Some of my favorite projects use lcd or tft displays, so I'll probably have some questions about those on this forum. Right now, I'm trying to figure out how to program a space game that uses a keypad and a 16x2 lcd. 

I also love to invent things. I'm always coming up with ideas for different devices and other things. My parents call me the "barefoot engineer," because I almost never wear shoes. 

I think I can learn a lot here from you all. Bye for now!


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robotBuilder
(@robotbuilder)
Honorable Member
Joined: 1 year ago
Posts: 529
2020-11-02 8:39 pm  

@rooster

I would think that knowing the actual direction of current flow would be very important to the design process.

It depends on the hardware. In a simple circuit like a torch with a switch, a battery and a light globe (or LED) how would you determine which way the "electricity flowed"?

A positive charge moving one way produces the same magnetic field as a negative charge flowing the other way. Thus looking at the direction of the magnetic field tells you nothing about the direction the electricity is flowing.

A positive charge flowing through a conductor one way produces the same heat as a negative charge flowing the other way. Thus measuring the temperature tells you nothing about the direction the electricity is flowing.

Other kinds of hardware like the electron gun in the old tv tubes show that,  in a conductor like copper,  it is the negatively charged electrons that are moving while the positively charged protons are tied to the atom.

Keep in mind the words negative and positive are themselves interchangeable. It is all a naming convention. Components with polar components would just be relabelled and work just the same.


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Rooster
(@rooster)
New Member
Joined: 1 month ago
Posts: 4
2020-11-03 10:24 am  

Thank you @robotbuilder some very interesting stuff in your reply, I appreciate it. 

In truth, conventional vs electron flow is mostly academic for me...in practice I have designed and built my circuits on the breadboard based on conventional flow and things have worked out fine. 

My working theory, which is probably wrong haha, is that it's the battery itself that has been labeled backwards, if you will, and that the node labeled positive is actually negative (and where the electrons flow from) and the node labeled negative is actually positive.  

Anyway, this is the stuff I love about electronics and why I find it so fascinating.  Again, thanks for your time robotbuilder, much appreciated. 


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codecage
(@codecage)
Member Admin
Joined: 1 year ago
Posts: 772
2020-11-03 10:29 am  

@barefoot_engineer

Welcome to the forum Eli!  You will find all kinds of help here when you need it.

And thank your parents for me for playing Santa last Christmas and giving you that Arduino set.  I gave both my granddaughters their own starter kits last Christmas so there would be no fighting over using it.  Guess what?  Don't think one of has even opened her kit yet, while the other has at least opened her kit and at least made an LED blink.

You are our youngest member that I'm aware of, while I'm one of the older ones.  I have seen a few that have said they were a few years older than I am, but not many.

Keep working with electronics and programming and the sky is the limit for you.  Keep your moniker forever, as it will always be a reminder of your beginnings, especially later in life.

Have you found the Arduino lessons by Paul McWhorter on YouTube?

Again welcome aboard!  😀 

SteveG


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G-Pop
(@g-pop)
New Member
Joined: 4 weeks ago
Posts: 1
2020-11-12 9:41 pm  

Hello Everyone,

My name is Morgan, and I have always enjoyed taking electronic equipment apart and putting them back together as well as building computers.  I recently started playing around with microcontrollers, and robots, and Machine Learning (you know...for the kids ;-)) and have purchased all sorts if stuff online.  Some of it has turned out to be lower quality, and some of it has turned out to be some really cool stuff -- it has all been a great learning experience, and has gotten me to the point to where I feel comfortable enough to follow along in a forum like this (I hope).

Thanks in advance for all of your shared experience and advice!

Morgan


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Rookie_Arduino
(@rookie_arduino)
New Member
Joined: 1 month ago
Posts: 1
2020-11-12 11:46 pm  

Hi everybody. My name is Jesse and I new in electronics. I used to run a bulletin board (Spitfire) over the Internet in the 80s and 90s that was my hobby then. In the 90s and 2000s I was repairing computers as a hobby. Now that I'm retired from work I decided to get into electronics. I was building small electronics DIY projects. I decided to try to learn about Arduino, so I went out and bought Arduino Kit with Arduino Uno and Arduino Mega boards. 

 

 

 


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koseyjason
(@koseyjason)
New Member
Joined: 2 weeks ago
Posts: 3
2020-11-22 6:14 am  

Hello everyone, my name is Jason. I just came across Raspberry Pi & Arduino in the last few days and found DBWS channel on youtube. I'm interested in all these electronic projects especially the ones which can be applied into real world. I'm eager to learn more and I'm planning to get myself a Raspberry Pi 400 kit and Arduino to kick-start my learning journey. My knowledge in electronics is just basics but I will learn as I go. That's the main reason I joined this community.

Can anyone here recommend me an Arduino board to start with? Is the Raspberry 400 kit worth buying for a starter like me?

Please let me know. 😊 

 

Jason


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hstaam
(@hstaam)
Trusted Member
Joined: 1 year ago
Posts: 61
2020-11-22 10:37 am  

Welcome to the forum.

The best arduino board to get started with is the arduino Uno. You can easily use it with jumper wires and a solderless breadboard. There are many free tutorials on using it.

I do not know much about the Raspberry 400 kit so I am unable to comment on it.

best wishes,

hj

hj


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koseyjason
(@koseyjason)
New Member
Joined: 2 weeks ago
Posts: 3
2020-11-23 5:34 am  
Posted by: @hstaam

Welcome to the forum.

The best arduino board to get started with is the arduino Uno. You can easily use it with jumper wires and a solderless breadboard. There are many free tutorials on using it.

I do not know much about the Raspberry 400 kit so I am unable to comment on it.

best wishes,

hj

Hi @hstaam, great. I will look into it. Thanks for the recommendation. 👍 


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