MyoWare Sensor

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Sparkfun MyoWare Muscle Sensor

The MyoWare muscle senor

The sparkfun MyoWare muscle sensor kit can be purchased from Sparkfun or Adafruit.

The datasheet can be located Here.

Wiring

MBEDMyoWare
VOUT+
GND-
AnalogInSIG

In order to extend the electrode range using additional wiring, or

Simple Test

This is a simple program to output the values of the sensor to your pc terminal. Gives values scaled between 0 and 1. 

#include "mbed.h"

Serial pc(USBTX, USBRX); // tx, rx
AnalogIn sig(p15);       // Gives the rectified and integrated EMG signal

//This is a simple test of the myoware muscle sensor
int main() {
    
    while(1) {
        float sig_val = sig;
        pc.printf("Sig Value: %f\n\r", sig_val);    
        wait(1);
    }
    
}

Using the Cable Shield

Replacing the LED Shield 

#include "mbed.h"

Serial pc(USBTX, USBRX); // tx, rx
AnalogIn sig(p15);       // Gives the rectified and integrated EMG signal
DigitalOut led1(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
DigitalOut led4(LED4);

//This is a simple test of the myoware muscle sensor
int main() {
    led1=0;
    led2=0;
    led3=0;
    led4=0;
    while(1) {
        float sig_val = sig;
        pc.printf("Sig Value: %f\n\r", sig_val); 
        if(sig_val>0 && sig_val <.25) {
            led1=1;
            led2=0;
            led3=0;
            led4=0; 
        } else if (sig_val>=.25 && sig_val <.50) {
            led1=1;
            led2=1;
            led3=0;
            led4=0;     
        } else if (sig_val >= .50 && sig_val <.75) {
            led1=1;
            led2=1;
            led3=1;
            led4=0;    
        } else if (sig_val >= .75 && sig_val<1) {
            led1=1;
            led2=1;
            led3=1;
            led4=1;     
        }
        wait(1);
    }
    
}

Digital Out

Using the API

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