Calibration of the EMG shield

[nescivi]

Hi,

I was wondering if there are some details on how to do the calibration of the EMG shield.
I assume the aim is to get a maximum response out of the amplification?

sincerely,
Marije Baalman

[LubOlimex]

Hello,

You can use the trimmer for calibration. Generally, the idea is to try to keep the signal curve as big as possible without any "cuts" of the curve occur. A "cut" is when the peak or the low point of a measured signal gets abruptly flat.

The fine calibration is performed if you feed the square calibration signal CAL (V_CAL; V_GND) to the phone jack. This signal was used while calibrating the device here in the factory before shipping.

Best regards,
Lub/OLIMEX