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The new Random Pictures Thread:

newmisty

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TomD

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TomD

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_DSC7632.jpg
DSC01789.jpg
 

Someone_else

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Fun with the oscilloscope.
Obviously you are using XY mode. Although I am a ham, I never had to use XY. Just lots of signal levels and some tedious serial (I2C, SPI, UART) verification. And some PWM verification. And... And... And...
 

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EricTheCat

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Obviously you are using XY mode. Although I am a ham, I never had to use XY. Just lots of signal levels and some tedious serial (I2C, SPI, UART) verification. And some PWM verification. And... And... And...
This is the first time I have used XY mode. Never had a need for it. In this case I was just having fun. The images that have more detail than a circle and square were made by playing one of those youtube videos of "Oscilloscope music" into the A and B channel.

The simple shapes of course were basic signals using a handy signal generator software called siggen in linux.

I am tempted to build a circuit to interface composite NTSC with the oscilloscope and see if I can display video on it. For no good practical purpose. :D
 

Someone_else

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I am tempted to build a circuit to interface composite NTSC with the oscilloscope and see if I can display video on it.
Assuming your scope does not have Z, you might be able to get "dark pixels" by driving the trace off the top or bottom.
For no good practical purpose.
But of course...
 

EricTheCat

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Assuming your scope does not have Z, you might be able to get "dark pixels" by driving the trace off the top or bottom.

But of course...
Nice idea. Luckily my scope does have a Z input and I tested it a bit yesterday and does what I expected (lowers brightness as you raise the Z input).

I would probably build something like this one: https://www.qsl.net/w2aew/W2AEW_NTSC_2_Scope_2.pdf
Demonstrated:

Even though I already have a couple small composite NTSC displays which are far more portable and color which I am not even using. :D
 

newmisty

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This is the first time I have used XY mode. Never had a need for it. In this case I was just having fun. The images that have more detail than a circle and square were made by playing one of those youtube videos of "Oscilloscope music" into the A and B channel.

The simple shapes of course were basic signals using a handy signal generator software called siggen in linux.

I am tempted to build a circuit to interface composite NTSC with the oscilloscope and see if I can display video on it. For no good practical purpose. :D
Ntsc?
 

newmisty

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TomD

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Ya know, it was just a week ago that I was telling myself my life would be truly complete if I only had a pocket oscilloscope--------
 

newmisty

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Ya know, it was just a week ago that I was telling myself my life would be truly complete if I only had a pocket oscilloscope--------
Lol
OMG YOU TOO!?
 

EricTheCat

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Basically, the old standard US video format. If you had video going over an RCA jack (composite video) in the US chances are it was NTSC. If you were in the UK it would be PAL.

Ya know, it was just a week ago that I was telling myself my life would be truly complete if I only had a pocket oscilloscope--------
I did not know until now that I need one of these! :D
 

newmisty

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Basically, the old standard US video format. If you had video going over an RCA jack (composite video) in the US chances are it was NTSC. If you were in the UK it would be PAL.



I did not know until now that I need one of these! :D
That kid really impresses me. I thought you might enjoy seeing his other content too.
 

EricTheCat

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That kid really impresses me. I thought you might enjoy seeing his other content too.
It may not surprise you that I am already subscribed to him. :beer: There are some great makers out there. Speaking of young bright individuals on youtube, tanner tech, and stuff made here are superb! Definitely worth checking out.



Stuff made here:

Tanner tech:

I was about to mention lm1881, but I see it's the heart of that circuit. :)
Sounds like you've been here before. New chip to me. Seems like it would be a useful circuit to build into a small tin. I have some microcontroller programs using composite video that might be fun to display on the oscilloscope.

I also have this oLED display with built in logic which has a serial interface so often that's my go to display for microcontrollers. Don't ask me why, but I wrote a program to draw fractals using it and a propeller microcontroller. :D
PropellerMicrocontroller-Fractals-2017-12-17-IMG_8256SSS.jpg


PropellerMicrocontroller-Fractals-2017-12-17-IMG_8259SSS.jpg
 

newmisty

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It may not surprise you that I am already subscribed to him. :beer: There are some great makers out there. Speaking of young bright individuals on youtube, tanner tech, and stuff made here are superb! Definitely worth checking out.



Stuff made here:

Tanner tech:



Sounds like you've been here before. New chip to me. Seems like it would be a useful circuit to build into a small tin. I have some microcontroller programs using composite video that might be fun to display on the oscilloscope.

I also have this oLED display with built in logic which has a serial interface so often that's my go to display for microcontrollers. Don't ask me why, but I wrote a program to draw fractals using it and a propeller microcontroller. :D
View attachment 187956

View attachment 187957
We'll call it, 'pleasantly surprised'.
:blew up:
 

newmisty

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Took this a few days ago
20201030_151334~2.jpg
 

newmisty

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Unca Walt

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I see this pic every time I come to post. Would like to hear more about these adorable little freaks of nature if you get the chance.
These little guys are not just gimmicks...

This'll be as hard to swallow as a Vaseline sammich, but they can be housebroken. They can be used as "seeing-eye doggies without sharp teeth". And comfort pets. They live about 25 years.

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newmisty

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newmisty

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Very warm today

20201109_142043~2.jpg
 

TomD

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One of the rescued stray cats living around here.

Sugar Cat
by Tom, on Flickr
 

newmisty

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Inspired by the colors and lighting yesterday i snapped some pics with the camera. A couple came out pretty nice for a phone cam.

20201109_150551~2.jpg


20201109_151936~2.jpg


20201109_150715~2.jpg

20201109_151055~2.jpg
 

TomD

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Inspired by the colors and lighting yesterday i snapped some pics with the camera. A couple came out pretty nice for a phone cam.



View attachment 188293
This picture is particularly good.

I'm from North Georgia but now live in Florida where there is no color change. It sucks.
 

newmisty

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This picture is particularly good.

I'm from North Georgia but now live in Florida where there is no color change. It sucks.
Thanks Tom. It's at a client's house. When I arrived yesterday my jaw dropped. It was like red velvet; absolutely beautiful.
 

newmisty

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This picture is particularly good.

I'm from North Georgia but now live in Florida where there is no color change. It sucks.
Here's one with slightly different lighting:

rsz_120201109_151024_4.jpg
 

newmisty

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newmisty

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TomD

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