public void start()
{
//There are two main uses of the constructors, first one just connects to the device without setting and specific configurations
//shimmer = new ShimmerSDBT("ShimmerID1", "COM15");
int enabledSensors = ((int)ShimmerBluetooth.SensorBitmapShimmer3.SENSOR_EXG1_24BIT | (int)ShimmerBluetooth.SensorBitmapShimmer3.SENSOR_EXG2_24BIT); // this is to enable the two EXG Chips on the Shimmer3
double samplingRate = 512;
//byte[] defaultECGReg1 = new byte[10] { 0x00, 0xA0, 0x10, 0x40, 0x40, 0x2D, 0x00, 0x00, 0x02, 0x03 }; //see ShimmerBluetooth.SHIMMER3_DEFAULT_ECG_REG1
//byte[] defaultECGReg2 = new byte[10] { 0x00, 0xA0, 0x10, 0x40, 0x47, 0x00, 0x00, 0x00, 0x02, 0x01 }; //see ShimmerBluetooth.SHIMMER3_DEFAULT_ECG_REG2
byte[] defaultECGReg1 = ShimmerBluetooth.SHIMMER3_DEFAULT_ECG_REG1; //also see ShimmerBluetooth.SHIMMER3_DEFAULT_TEST_REG1 && ShimmerBluetooth.SHIMMER3_DEFAULT_EMG_REG1
byte[] defaultECGReg2 = ShimmerBluetooth.SHIMMER3_DEFAULT_ECG_REG2; //also see ShimmerBluetooth.SHIMMER3_DEFAULT_TEST_REG2 && ShimmerBluetooth.SHIMMER3_DEFAULT_EMG_REG2
//The constructor below allows the user to specify the shimmer configurations which is set upon connection to the device
shimmer = new ShimmerLogAndStreamSystemSerialPort("ShimmerID1", "COM169", samplingRate, 0, 4, enabledSensors, false, false, false, 0, 0, defaultECGReg1, defaultECGReg2, false);
shimmer.UICallback += this.HandleEvent;
shimmer.Connect();
if (shimmer.GetState() == ShimmerBluetooth.SHIMMER_STATE_CONNECTED)
{
System.Console.WriteLine("\n");
System.Console.WriteLine("EXG CONFIGURATION SET USING SHIMMER CONSTRUCTOR");
System.Console.WriteLine("EXG CHIP 1 CONFIGURATION");
for (int i = 0; i < 10; i++)
{
System.Console.Write(shimmer.GetEXG1RegisterContents()[i] + " ");
}
System.Console.WriteLine("\nEXG CHIP 2 CONFIGURATION");
for (int i = 0; i < 10; i++)
{
System.Console.Write(shimmer.GetEXG2RegisterContents()[i] + " ");
}
System.Console.WriteLine("\n");
//Note the data rate of the EXG chips (exgrate) is automatically set via writesamplingrate(). For a sampling rate of 512Hz, the exgrate is set to 0x03, which corresponds to 1000 SPS.
//The exgrate can be set to a different settting afterwards, e.g. to 2000 SPS:
shimmer.WriteEXGRate(4);
//The gain of the EXG chips is also configurable. The default gain = 4 (0x04). Now the gain is set to 0x05, which corresponds to a gain of 8:
shimmer.WriteEXGGain(5);
shimmer.ReadEXGConfigurations(1);
shimmer.ReadEXGConfigurations(2);
System.Console.WriteLine("EXG CONFIGURATION AFTER MANUALLY SETTING THE VALUES (RATE and GAIN)");
System.Console.WriteLine("EXG CHIP 1 CONFIGURATION");
for (int i = 0; i < 10; i++)
{
System.Console.Write(shimmer.GetEXG1RegisterContents()[i] + " ");
}
System.Console.WriteLine("\nEXG CHIP 2 CONFIGURATION");
for (int i = 0; i < 10; i++)
{
System.Console.Write(shimmer.GetEXG2RegisterContents()[i] + " ");
}
System.Console.WriteLine("\n");
//Example code for changing the ecg resolution from 24bit to 16bit - to limit the amount of data transmitted over the Bluetooth link
enabledSensors = ((int)ShimmerBluetooth.SensorBitmapShimmer3.SENSOR_EXG1_16BIT | (int)ShimmerBluetooth.SensorBitmapShimmer3.SENSOR_EXG2_16BIT); // this is to enable the two EXG Chips on the Shimmer3 at 16 bit resolution
shimmer.WriteSensors(enabledSensors);
//Example code for changing the ecg resolution back to 24bit - recommended
enabledSensors = ((int)ShimmerBluetooth.SensorBitmapShimmer3.SENSOR_EXG1_24BIT | (int)ShimmerBluetooth.SensorBitmapShimmer3.SENSOR_EXG2_24BIT); // this is to enable the two EXG Chips on the Shimmer3 at 24 bit resolution
shimmer.WriteSensors(enabledSensors);
//Example code for setting the default ecg settings again (exggain = 4, exgrate >= sampling rate)
//First write the default register settings for both EXG chips
shimmer.WriteEXGConfigurations(defaultECGReg1, defaultECGReg2);
shimmer.ReadEXGConfigurations(1);
shimmer.ReadEXGConfigurations(2);
System.Console.WriteLine("SET DEFAULT ECG CONFIGURATIONS AGAIN");
System.Console.WriteLine("EXG CHIP 1 CONFIGURATION");
for (int i = 0; i < 10; i++)
{
System.Console.Write(shimmer.GetEXG1RegisterContents()[i] + " ");
}
System.Console.WriteLine("\nEXG CHIP 2 CONFIGURATION");
for (int i = 0; i < 10; i++)
{
System.Console.Write(shimmer.GetEXG2RegisterContents()[i] + " ");
}
System.Console.WriteLine("\n");
//Second write the exgrate via writesamplingrate() this time
shimmer.WriteSamplingRate(512);
shimmer.ReadEXGConfigurations(1);
shimmer.ReadEXGConfigurations(2);
System.Console.WriteLine("SET ECG DATA RATE AUTOMATICALLY BY CHANGING THE SAMPLING RATE OF THE SHIMMER");
System.Console.WriteLine("EXG CHIP 1 CONFIGURATION");
for (int i = 0; i < 10; i++)
{
System.Console.Write(shimmer.GetEXG1RegisterContents()[i] + " ");
}
System.Console.WriteLine("\nEXG CHIP 2 CONFIGURATION");
for (int i = 0; i < 10; i++)
{
System.Console.Write(shimmer.GetEXG2RegisterContents()[i] + " ");
}
System.Console.WriteLine("\n");
System.Console.WriteLine("IN ABOUT 5 SECONDS STREAMING WILL START AFTER THE BEEP");
Thread.Sleep(5000);
System.Console.Beep();
shimmer.StartStreaming();
}
}
