Your first trace, with the demo board

The demo board runs inside the scope page and behaves like a real board, so it is the quickest way to learn the controls. It works in any browser, on a computer or a phone.

Start it

1. Open the scope.
2. In the Board list, choose Demo board, no hardware.
3. Press Start the demo board.

A sine wave appears on the screen, and the measurements beside it start to update: frequency, peak to peak, RMS and the rest.

Try the controls

• Press Autoset. The scope picks a time and voltage scale that fits the signal.
• Press the time per division + and - keys and watch the waves spread out and squeeze together.
• Open Demo signal in the controls and change the waveform to Square. The duty cycle measurement now means something; change it and watch the readout follow.
• Under Display, choose Spectrum to see which frequencies the signal contains. A square wave shows a row of peaks; a sine wave shows one.
• Rest the pointer on the trace (or tap it on a phone) to read the time and voltage at that point.

Next

When you are ready for a real signal, connect a board.