Housing
If you have access to a 3D printer, it’s easy to make a housing for the scope controller. I sketched up a simple housing in Fusion 360.
The following is what the unit looks like, operating inside the housing with the lid off. The housing is approximately 5 cm long. You can see on the OLED it recently heard the “STOP” word.
Both the STL files for the base and lid, as well as the source Fusion360 file, can be downloaded from here:
Usage
Because the unit is powered from the ESP32 USB cable, the easiest thing is plug it into the USB port on the oscilloscope. That way the unit is automatically powered on when the scope turns on, and it’s always ready for use – you never need to think about it again. For me personally, I don’t use the scope’s USB port for memory sticks because with the scope on the network it’s far easier to do screen captures through its web interface. The oscilloscope voice control unit only draws about 90 mA when running, so it’s a light load.
That’s it! Enjoy controlling your oscilloscope hands-free.
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