The oscilloscope

Module goal: see a signal’s real waveform, in both time and voltage.

Status alpha (in trial use) · about 130 minutes

You need: an oscilloscope with a 10× probe and a ground spring if available, and a TESAIoT Dev Kit flashed with the QWA309 Header I/O Test example

Lesson	Topic	Time
elec.m05.l01	Oscilloscope basics	65 minutes
elec.m05.l02	Measuring PWM	65 minutes

Module checkpoint

• can set timebase, volts/div and trigger to get a stable view of the PWM signal on a header pin
• can measure PWM’s duty cycle and frequency, and compare them against what the program commanded
• can explain the difference between what a logic analyzer tells you and what an oscilloscope tells you