In this tutorial, we show how to create a simple at-home electromyography (EMG) system that will sense muscle activation from the surface of the skin and use it to send a keypress to a computer, bypassing the keyboard. We used a classic MaKey MaKey and a MyoWare sensor to accomplish this, along with a bit of coding. First, we show how to accomplish this using one MyoWare sensor. Then, we show how to add a second sensor to the system. For our purposes we used two sensors, but the methods described in this tutorial can be used to add any number of sensors to the system. The system shown herein can be adapted to many different applications, and we encourage experimentation with its use.

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