Rex Ching / Mbed 2 deprecated MedtricsIOECG

ECG data acquisition with Analog device frontend and Redbear nano BLE

Dependencies:   BLE_API mbed nRF51822

Fork of BLENano_SimpleControls by RedBearLab

Reference Design

2 channel EKG with Redbear BLE reference and Analog Device amplifier to generate RAW EKG data fed into Medtrics MaaS service . Medtrics API can consumer raw input with given parameters of ADC sample frequency and scaling factor

Specification

  • Application Processor: nRF51822/BLE , Analog frontend: AD8232 /
  • Input Analog Voltage = 3.3V
  • 10 bit ADC input range = (0-1023) or scaling factor= 3.22mV/unit (this is ADC resolution)
  • ADC sample frequency (BLE pull rate) = 250Hz (4ms per sample)

/media/uploads/pkweitai/ble_-3-.jpg Reference IOS and Android app will be online soon!

Servo.h

Committer:
RedBearLab
Date:
2014-10-31
Revision:
0:be2e4095513a
Child:
1:81a97eb70d3d

File content as of revision 0:be2e4095513a:

#ifndef _SERVO_H
#define _SERVO_H

#include "mbed.h"

class Servo
{
public:
    Servo(PinName pin);
    ~Servo(void);
    
    void write(unsigned char degree);

private:
    void convert(unsigned char degree);
    
    PwmOut _servo;
    unsigned int pulse;
};

#endif