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The Arduino arrived. I have no electrodes though. But what are electrodes, just some pieces of metal taped to your skin, right? Let's improvise that:
There are two pieces of aluminum foil taped to my skin, held together with blue medical wrap.
The educational material about electromyographs that I've seen described a chain of hardware elements to process and clean up the signal:
But I thought, let's focus on the MVP. Why not simply hook the electrodes straight to the analog input pins of the Arduino with some alligator clamps? Worked fine. I did minimal signal processing in software though, you can find the => https://codeberg.org/hut/psylink/src/branch/master/experimental/1_initial_test/ReadAnalogVoltage1.ino source code here.
This video shows the myoelectric signal on Arduino IDE's built-in signal plotter:
Video link: data/myo/video1.webm
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Written on 2021-04-08 by hut
