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Author Topic: Cheap scope with LCD  (Read 9283 times)
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The Velleman HPS10 Hand Held Oscilloscope sells for about $109.95 and has a 10MHz sampling rate according for the specs and
2MHz analog bandwidth

Could someone repeat the PCM demo with a Velleman HPS10SE and post that to youtube?  I definitely don't want the Rigol price point, but the cheaper PCB oscope seems a bit slow to refresh with dynamic signals.  Maybe the Velleman is a good middle ground.
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In case anyone's got this thread on notify, I put a "first impressions" test of the oscope in another thread at http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1228070870/3#3 - seems okay for seeing individual bits in an i2c conversation.
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Nice. I've been looking for an appropriate oscilloscope.

I've seen the oscilloscope that relays information from the arduino to the computer which is updated on a Processing graphics window(Pretty nice), but with sample data being 3 bytes and the practical limit of the rs232-usb converter being 167 bytes/s, the practical bandwidth of it is ~56 Hz, which obviously palls in comparison. If one weren't to use the computer's USB connection for relaying data, then the limiting factor would be, at least, the Atmega168's analog-in's sampling rate of ~100ms on average, which limits it to 10 Khz(or around 5kHz in the worst case).

The fact there's something else out there that's cheap and has a bandwidth of 1Mhz is pretty nice to know.
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Any way to connect this scope to a computer?
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Using a serial port I believe, but serial ports are very slow

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Seems really interesting to me.....Is there anything out there that is a few steps better?  2 channels, faster lcd
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Yes, but not at this price point

The kit is about $33 I believe

A basic Velleman scope sells for about $110-$120 fully assembled with LCD but no backlight

smiley
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I'm new to scopes, and this is just the sort of 'basic, entry-level' scope I've been looking for. I'm going to order one soon smiley-grin
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$33 for the kit from China and $48 assembled from the US

SeedStudio has the Kit and the assembled version

NCK in the US has the assembled version only

http://www.nkcelectronics.com/digital-storage-oscilloscope-very-low-cost.html

smiley
« Last Edit: December 24, 2008, 10:09:32 am by gnu_linux » Logged

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can anyone testify to their "goodness"?

I mostly wanna use it with PWM to servos and to LEDs. Would this O-scope be good for my application?
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Check out the Roboduino Arduino-compatible board!


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See the link I put in "Reply #31" above.
« Last Edit: December 24, 2008, 01:13:07 pm by halley » Logged

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Could someone repeat the PCM demo with a Velleman HPS10SE and post that to youtube?



[media]http://www.youtube.com/watch?v=xBzcWVzb_UA[/media]

For the price I'm very happy with the HPS10. A backlight would be nice, but it isn't hard to see. I've had mine for about 3 or 4 years and have only had minor problems with it running on batteries (doesn't want to turn on, might be fixed by fresh batteries). If I keep it plugged in it gives no problems at all.

You can see my review of the scope on Amazon.
« Last Edit: December 24, 2008, 07:46:40 pm by DaveK » Logged


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I purchased one from seeedstudio.  Came with the panels and buttons.  Cost is $49  USD with free shipping.  I purchase a few things direct from Hong Kong.  Air post, the free shipping advantage, takes two weeks to arive in Michigan.  This is deffinately a beginers scope but is more than adequate as a learning tool on the Arduino, Seedino and Sanguino.
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Could this scope measure trangle or sine waves?
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If by 'measure', you mean 'display' and you can see how tall and wide they are against the grid, yes.  It's not limited to digital HIGH/LOW transitions at all.
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