[Open_electroporator] pyflex_f401 v0.5 prototype testing

[John Griessen]

Here is a photo of the prototype -- attached inline below:

The lower left flat flex cable has a serial port that has been used for a REPL.
The probe I am holding is measuring crystal running @ 16MHz.
The clock crystal seems to be running since micropython can count date and time, but I have not
confirmed it all the way -- not essential for immediate testing on live cells.
The lower left flat flex cable goes to the kvboard.
The USB connector with yellow cable is the data cable that has been tested doing the REPL, and DFU loading of micropython.
The USB connector middle right is for power from a USB charger.
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