Hi,
Looks like a good circuit. If there is a serial port on the AtMega chip, you can connect it to a Serial to USB converter module quite easily.
Do you have the code for this ? are you able to program it ?
From what I see,
The circuit uses a 200kHz 12 bit Analog to Digital converter to sample the coil, it also detects the start of the coil signal with a transistor it seems,.. (Q5).
This will be able to sample the coil curve in about 20 different positions, very quickly, every pulse.
It can probably 'look' at any part of the discharge curve at a resolution of 5 micro Seconds.
The circuit I posted, uses a 16 bit analog to digital converter.
It is able to sample the coil curve at a finer resolution (smaller time slice also).
I think both systems would have the same depth and performance.
The coils and pulses are the same.
Regarding pulses per second, yes 100Hz gives a faster response to targets.
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