Hi,

Had a go on a scope this afternoon to get an idea on what it did as I have never used one.

I seemed to work well with the digital stuff. I.E. plugged in pico, set a trigger on push button following a tutorial but things went a bit south when I moved from using USB to my own power supply and a quartz crystal.

Gave up with the crystal and just went to an LED and 220 resister using 3.5V. I had expected a flat line like the USB test but I got this.

Like most people did not want to look foolish but instead highlight my stupidity online instead. Please be gentle with me - got to learn somewhere.

Thanks all as ever.

 

For a first time oscilloscope user, it can be overwhelming. As you say, you have to start somewhere.

Start by reading the User Manual that came with the instrument.
Next, search the internet with simple introduction to using an oscilloscope. Be aware that the theory, operation and usage of an older analog oscilloscope is very different from that of a newer digital sampling oscilloscope.

You cannot test a quartz crystal on its own without some kind of oscillating circuit.

Experiment with measuring straight DC voltages, for example, battery voltages.

Next, build a simple oscillator using a 555-timer IC and test this with your oscilloscope. Examine different points in the 555-timer circuit, such as pin-3, pin-6, pin-7, pin-8. Choose different values of capacitance C for widely different frequencies, for example, below 1Hz and above 1MHz.



Finally, whenever you are stumped, come back with your questions.
Good luck on your experimenting.

 

Thanks for the advice. Have been youtubing and reading lots. Quite a bit different from a digital analyzer but a bit in common with pulseview.

Also thanks for suggestion on 555 circuit. All started when I needed to have a 1Mhz clock and only have 4Mhz upwards for my 6502. Made a D-latch from a 75HC00 and wanted to check it halved. Thought it would be easy but it was fun