SEN0240 Datasheet SEN0240 | P4-P6

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#if defined(ARDUINO) && ARDUINO >= 100

#include "Arduino.h"

#else

#include "WProgram.h"

#endif

#include "EMGFilters.h"

#define TIMING_DEBUG 1

#define SensorInputPin A0 // input pin number

EMGFilters myFilter;

// discrete filters must works with fixed sample frequence

// our emg filter only support "SAMPLE_FREQ_500HZ" or "SAMPLE_FREQ_1000HZ"

// other sampleRate inputs will bypass all the EMG_FILTER

int sampleRate = SAMPLE_FREQ_1000HZ;

// For countries where power transmission is at 50 Hz

// For countries where power transmission is at 60 Hz, need to change to

// "NOTCH_FREQ_60HZ"

// our emg filter only support 50Hz and 60Hz input

// other inputs will bypass all the EMG_FILTER

int humFreq = NOTCH_FREQ_50HZ;

// Calibration:

// put on the sensors, and release your muscles;

// wait a few seconds, and select the max value as the threshold;

// any value under threshold will be set to zero

static int Threshold = 0;

unsigned long timeStamp;

unsigned long timeBudget;

void setup() {

/* add setup code here */

myFilter.init(sampleRate, humFreq, true, true, true);

// open serial

Serial.begin(115200);

// setup for time cost measure

// using micros()

timeBudget = 1e6 / sampleRate;

// micros will overflow and auto return to zero every 70 minutes

}

void loop() {

/* add main program code here */

// In order to make sure the ADC sample frequence on arduino,

// the time cost should be measured each loop

/*------------start here-------------------*/

timeStamp = micros();

int Value = analogRead(SensorInputPin);

// filter processing

int DataAfterFilter = myFilter.update(Value);

int envlope = sq(DataAfterFilter);

// any value under threshold will be set to zero

envlope = (envlope > Threshold) ? envlope : 0;

timeStamp = micros() - timeStamp;

if (TIMING_DEBUG) {

// Serial.print("Read Data: "); Serial.println(Value);

// Serial.print("Filtered Data: ");Serial.println(DataAfterFilter);

Serial.print("Squared Data: ");

Serial.println(envlope);

// Serial.print("Filters cost time: "); Serial.println(timeStamp);

// the filter cost average around 520 us

}

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SEN0240

Mfr. #:

Buy SEN0240

Manufacturer:

DFRobot

Description:

Multiple Function Sensor Development Tools Gravity: Analog EMG Sensor by OYMotion

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New from this manufacturer.

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