File talk:RS232-UART Oscilloscope Screenshot.png

The bottom half of this image is unnecessary

The bottom half of this image provides no value, there is no indication of the voltage levels between high and low, it looks like it was output through a logic analyzer not a true oscilloscope and is scaled very poorly. CombatWombat42 (talk) 22:43, 24 June 2013 (UTC)

Look up what a UART does and it might become clearer. It's not just voltage shifted, it's not even just cleaned by a Schmitt trigger (which would remove the ringing), the timing has also been cleaned up. This is no longer an analogue signal that has been cleaned up, it's now a regenerated signal: the analogue signal is converted to a digital word (not just serial digital levels, a data word) and this word is then used to regenerate a serial analogue signal. Andy Dingley (talk) 22:57, 24 June 2013 (UTC)

That doesn't really respond to any of my statements about this image. CombatWombat42 (talk) 15:16, 25 June 2013 (UTC)