i have been using PCscope as a ‘rough and ready’ oscilloscope for a few days and only just realized that i might be straining the Arduino if the voltage pops above 5V - the power supply on the circuit i am testing is supposed to be 5V but i’ve seen it go above that.
so, i thought i should just play it safe and rig the circuit to measure up to 9V instead.
to do that, i should make a voltage divider, right ?
could you please confirm if i have the circuit correct ?
(it’s just adding the two RVD1 and RVD2 into the original circuit specified by PCscope. - was not sure if i had it correct, a bit thrown off by the extra (clamping?) diodes in there.)
the values of both resistors should be the same to make it measure (2x 5V= ) 10V, right ?
changed topic heading to better reflect new question on the subject.