And this is a one liner to get every second a reading (That's with USB and Linux):
while sleep 1;do echo ':MEAS:ITEM? VAVG, CHAN1' >/dev/usbtmc0; head -1 /dev/usbtmc0;done
2.989799e+00
2.989933e+00
2.989565e+00
2.989666e+00
...
This is an example of the scope measuring a 2.989V DC voltage (on my 3.5 digit MM). The resolution is much better due to averaging of the 1200 samples on the screen. The 8-bit ADC has steps of 40mV (1V/division and 25 points per division). So the resolution after averaging becomes 40mV/1200=0.033mV. Even better than most multimeters
![Cool 8)](https://www.eevblog.com/forum/Smileys/default/cool.gif)
, but it's not that stable. I measured 0.03% variation (three sigma) in the readout. So for this reading about a mV. And the accuracy of the scope is of course not intended for accurate voltage measurements even if my reading is within 0.1%, that's not what the scope is rated for.
Still a fun instrument to play with
![Popcorn :popcorn:](https://www.eevblog.com/forum/Smileys/default/EatingPopcorn.jpg)