Scoppy Feedback

[bhcho3935]

Hello,
I've been using an electric fence tester that combines a diy front end and a PICO(USB) for over a year successfully.
Scoppy is a truly amazing oscilloscope app.
I'm grateful to the developers.
Electric fences are energized with high-voltage pulses of several thousand volts, with a pulse width of approximately 50-100 usec.
The tester measures voltage (CH1) and current (CH2), and calculates the pulse energy with MA1.
There are two and three voltage range GPIOs assigned to CH1 and CH2, respectively.

I've provided my feedback below, which I hope will be reflected in next version.

1. Firmware settings > Restore defaults
   Clicking "Restore defaults" sets unwanted values.
   A badge having "Save as defaults" function would be helpful.
   I thought "Save to device" and "Restore from device" would do this, but I'm not sure what they actually do.

2. Horizontal Time/Div Issue
   When I run the app first and then plug in the USB, the waveform appears short.
   This appears to be as if the Time/Div has quadrupled.
   However, if I plug in the USB first and then run the app, the waveform appears normal.

3. Calculating Pulse Energy Using Math
   We currently calculate the energy using MA1 = (CH1 * CH2) * Tpw.
   Here, Tpw = pulse width, which can be determined using the cursor provided by the app.
   However, this is cumbersome and does not yield accurate results.
   Therefore, we propose the SUM function below, which we hope will be included in next version.
   The pulse energy can be calculated as MA1 = SUM(CH1 * CH2 * h).
   Here, SUM = summation (a function similar to integral), which resets to 0 upon each trigger.
   h = sampling time interval.

4. Channel Naming
   It would be nice to be able to name channels like CH1="Voltage (kV)", CH2="Current (A)", MA1="Energy (J)", etc.

[fhdm-dev]

Hi.

1. Restore default removes all settings/configuration/options etc that have been saved by the app. ie. it's like a factory reset. 'Save to device' and 'Create from device' do nothing. Oops.
2. OK. I wasn't aware of that bug. I'll look into it.
3. I have considered adding an integral "function" but I don't know when or if it will happen.
4. OK. Noted.

Thanks for the feedback. Much appreciated.

[bhcho3935]

Hi.

Please add "Save to device" and "Create from device" functionality in the next version.
We hope all settings/configurations/options, etc. will be saved to the device and created from the device.

Thank you.