FNIRSI 1014D

Arduino connected to PC by USB, tested signal: I2C. Internal signal frequency: 100 kHz.
At 23 sec the ground of the oscilloscope was connected to the ground of the Arduino.
There was a strong disturbance.
The same signal on an old soviet oscilloscope.
The probe is the same.

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Arduino connected to PC by USB, tested signal: I2C. Internal signal frequency: 100 kHz. At 23 sec the ground of the oscilloscope was connected to the ground of the Arduino. There was a strong disturbance.		The same signal on an old soviet oscilloscope. The probe is the same.
Download MP4		Download MP4