Epilepsy Warning Bracelet

HIGH-LEVEL SCHEME
1. Signal Acquisition + Amplification
Using an INA128 opamp, we are able to adjust its gain by changing Rg, and to acquire the signal, using two electrodes in a differential configuration + a reference.

2. Filtering
To remove further acquisition noise, we are going to implement a High-Pass 20Hz (seen in paper "Sampling, noise-reduction and amplitude estimation issues insurface electromyography"), 2nd order Butterworth, 0dB gain, and in a Sallen-Key configuration, with the help of the Filter Wizard.

3. Second Amplification
Non-inverting simple configuration, using LM358 opamp, with a 5V/V gain.