| Electronics > Beginners |
| Purchased an oscilloscope but did I make a mistake? (re: newbie + Arduino, etc) |
| << < (6/13) > >> |
| JS:
As a test in the metrology class we had to setup the scope entirely without triggering and then hit run once to get a perfect, single cycle filling all the screen. It was an easy signal to trigger as a low noise sine wave or something. For many was hard as shit and they were asking in the hall how to do so. Now, today I was trying to trigger a data bus to identify the traces (many data bus on a single flat ribbon so hard to tell which was which before hand) triggering one of the signals as reference was hard enough with advanced trigger options but I got a reasonable steady signal in the screen and I was able do distinguish the independent sync data lines. Now, learn how to use the scope, know where all the tweaks are and how to use them one by one. Having a signal gen helps (your phone would do, I can recomend an app) so you can trigger the signal when you need it. Edge triggering is usually not enough and auto will have quite a hard time to deal with that. Also, you need to know the acquire mode the scope scope is in or you'll trip more than once thinking your signal is something that isn't. As a rule of thumb I always start with normal and if I see a certain type of consistency and need lower noise I'd switch to a more convenient one. DS1054Z is a powerful modern scope, has almost as many options as there is for one, but learning how they work is useful and pays back quite fast. JS |
| malagas_on_fire:
A good starting point for a oscilloscope learning is using LRC circuits with frequency and a old analog scope, with manual controls and no auto setting button. I remeber using those scopes on college and when i go to university i saw digital scopes that scrambled my mind but there was the auto. Most of my mate would use the auto button but fortunally i used the manual controls. Nowadays i only use the auto button if i now if the expected signal is stable, but doing manual ranging helps to leaning how to measure the desired signal, has well perform math operations. Check the beginner section for scopes here, which is long but good video. |
| nfmax:
The OP is far better off having a DSO with an 'auto' button than not having a DSO without one. :) |
| HoracioDos:
It is also possible to decode many protocols with sigrok/pulseview and DS1054Z if it gets too messy. |
| IDEngineer:
--- Quote from: nfmax on June 13, 2018, 10:19:40 am ---The OP is far better off having a DSO with an 'auto' button than not having a DSO without one. :) --- End quote --- As noted by JS, he'd be even better with a DSO without an Auto button (or an Auto button that has been disabled). Speaks volumes that the Auto button can be disabled...! |
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