I am a beginner. Go easy on me please :-)
I have a Uno R3 that works perfect (ATMega328P-PU). I have a cheep chinese digital oscilliscope I bought a while ago just to learn on.
I am trying to look at my clock signal on the chip / board. So I probe (with and with and without the hook) pin 14 (CLKO) and the ground of the probe to the boards ground. I tried this in 1x and 10x and I tried it with and with out a 50 ohm pass through attenuator.
All I get is a very jumpy sine wave that is all over the place and the oscilliscope says 28MHz even though the board runs as 16MHz.
I just want to look at the clock signal just to learn. This is not for any kind of school / class / job / business. Its just for me to learn.
If anyone can point me in the right direction i would appreciate it very much!