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# Use Cases
## Presets
Useful presets are stored persistently (JSON or YAML) and recalled with a single command. Preset configuration is applied to both function generator and oscilloscope. The intention is to quickly restore a state that can then be used for manual tests.
## Screen capture
Capture screen, dump to PNG. File name can be parameterised including special codes for date, time and incrementing counter.
## Frequency response measurement
With a single command, a frequency response sweep is performed.
Parameters:
* Frequency range (from, to in Hz)
* Measurement steps
* Linear or logarithmic?
* Signal generator channel
* Oscilloscope channel(s)
Data is stored in an array of tuples (freq, [measurements]).
Output options:
* CSV
* SVG plot?
* PNG plot?
* HTML report containing test parameters, data, plot, etc
## Repeated measurement mode
1. User specifies a set of actions to be taken on each round
* Record measurement on a specific channel
* Screen capture
* Frequency response sweep
2. System goes to measurement mode: whenever a specific key (enter) is pressed, all actions are taken
* System provides feedback when ready to accept new input
3. User exits measurement mode by pressing a special key (q)
4. Optionally, acquired data is handled. Options:
* Save to CSV
* Print to console
* Pass as argument to user callback
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