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March 2, 2010
News - SparkFun April Fool's Pra… |
Fluke claiming copyright on the color yellow …
Product DEV-12768 |
about 2 months ago
Will this work on the not-at-all 5V tollerent ST nutella (nucelo) board? it has arduino headers but the 5V lines are in the right place so it would power all my boards that could be powered from 3.3v with 5V because … they did not think?
Product PRT-12080 |
about 2 months ago
if you remove the opamp current source it would work across all voltage ranges (the buffer can take) … your comparing it against the supply voltage anyway so it would save a ton of pain!
News - SparkFun's Going to Amste… |
about 3 months ago
Why you already live in Colorado?!
kidding ofcource, have a nice trip its a BEAUTIFUL country! cant express that enough!
Product TOL-11766 |
about 4 months ago
No but you can use RS232 for the software and that means no clumsy drivers so running the main program in WINE more than likely wont cause any trouble or you can write a simple driver for an already established O-Scope linux toolset (or wait someone will do it, or try rigol because im 99% sure its just a re-branded rigol)
I bought this scope and used it for 2 days, its a REALLY nice scope, screen is smaller than what im used to (an owon, known for there big screens) but it preforms exactly as specked
one thing to keep an eye out for is its 1GS/s ADC is only one channeled meaning it drops to 500MS/s at 2 channel mode but with the 1mhz per 4 mss rule of thumb it still works wonders
the lights on the keypad and the wide display helps allot and the internal fan is very quiet
the probes it comes with are FINE but feel very plasticy and im questioning there performance
one major complaint i have (that some would call a feature) is at high frequency it has a strange persistence that cannot be turned off, seeing its fairly slow (but still reasonable) display this is very useful for detecting bursts that only show up every x number of waves but i wish it could be turned off
all the knobs are clickable and have a function, useful, BUT some are not as clear as i wish
i will do a full tear down at some point and link it here, but if your looking to mod it for better performance i would say with 1GS/s and 100MHZ what you see is probably what you get there probably not limiting the hardware at all!
sorry this is not a proper review its 3AM and this is all the time i have but i hope it helped guiding some of you
EDIT: i did some accuracy tests, it has a built in hardware frequency counter so i put in a 10MHZ sine from an OCXO that was calibrated against a GPS tamed TCXO last month and it showed 10.0001MHZ … quite good i think but i would not be surprised if this drifted but im not sure the clock source its using
i than tested voltage with a calibrated 5v +/- 2ppm reference calibrated 3 months ago and i got 5.00v on ch 1 and i got 5.04v on ch2 both on 10x and 1x modes with supplied probes
i also encountered 2 software glitches, one it would not let me measure one value 2 times at once in the measurement system, and it once glitched when taking a screenshot to not stop taking screenshots, a reset fixed them both
10/1 attenuators that work from DC-1mhz (3db down) are fairly cheap they simply contain a 1% 9Meg resistor in series … you can make one yourself using $2 in parts
but if you’re working on mains a 1gs scope might be a bit much
oh i find it hilarious when trolls pick at minor spelling errors hahaha
im sorry there $400 100mhz scope does not have deep enough memory for you.
News - Enginursday - Stupid Eagl… |
about 4 months ago
because eagle has been for many many years the professionals choice when they dont want to spend any money
there not going to up and change just because some other tool may or may not be better at the time
but i have to disagree about KiCAD i find it to be overly simplified where it should not be and overly complicated where it should be easy and it crashes too much
im also not an altium fan, i have to use it for work and it was back in the day the best tool you can use but they have lagged behind other free suits
No public wish lists :(