Acz container

Register 0x3B (ACCEL_XOUT_H) Wire.endTransmission(false); Wire.requestFrom(MPU_addr,14,true); // request a total of 14 registers AcX=Wire.read() AcY=Wire.read() AcZ=Wire.read() Tmp=Wire.read() GyX=Wire.read() GyY=Wire.read() GyZ=Wire.read() }Step 5: Making IFTTT ChannelIf you’re not using IFTTT (If This Then That), you’re seriously missing out. If This Then That allows you to combine different services with your own custom logic. Channels are the fundamental building blocks of IFTTT. They represent web services that provide data sources or even physical devices like fitness wearables.The Maker Channel allows you to connect IFTTT to your personal DIY projects. With Maker, you can connect a Recipe to any device or service that can make or receive a web request.I will use Maker Channel to receive a GET request from ESP8266 Module when triggered by ATmega chip. Maker Channel then send a SMS to a predefined number using SMS Channel. So, let's explain how to work with IFTTT. 1. If you don't have one already, create an account on www.IFTTT.com.2. After sign in click to Channels to create a channel3. Select Maker from DIY Electronics4. Click to Connect button5. Note your key, it will be required at the time of programming the ESP8266 module. Then click to Create a New Recipe.6. Click on this7. Choose Maker as Trigger Channel8. Choose Receive a web request9. Make an event name, I used 'button'. Event name is important and you have to use same name in the program.10. Then click to that11. Choose Android SMS as Action Channel12. Click Send an SMS as an Action13. Enter a

Library was used to communicate with with the sensor using ATmega328 microcontroller. I used standalone ATmega chip instead of arduino board to keep the form factor small because form factor is a vital issue for wearable devices. You will get several tutorial on the Internet how to program standalone ATmega chip using Arduino board or if you buy bootloaded ATmega328 microcontroller then you can program it just replacing the chip from the Arduino Uno board. After replacement put your new chip into the Arduino board and program it. After programming detach it from the board and use it in your circuit. Step 4: Programming ATmega328P Microcontroller With Arduino UnoThe complete Arduino program is attached herewith. You may need to calibrate the MPU sensor for getting accurate result. you may also required to adjust the threshold values used in the program. Make sure that Arduino wire library is installed.// MPU-6050 Short Example Sketch// Public Domain#includeconst int MPU_addr=0x68; // I2C address of the MPU-6050int16_t AcX,AcY,AcZ,Tmp,GyX,GyY,GyZ;float ax=0, ay=0, az=0, gx=0, gy=0, gz=0;//int data[STORE_SIZE][5]; //array for saving past data//byte currentIndex=0; //stores current data array index (0-255)boolean fall = false; //stores if a fall has occurredboolean trigger1=false; //stores if first trigger (lower threshold) has occurredboolean trigger2=false; //stores if second trigger (upper threshold) has occurredboolean trigger3=false; //stores if third trigger (orientation change) has occurredbyte trigger1count=0; //stores the counts past since trigger 1 was set truebyte trigger2count=0; //stores the counts past since trigger 2 was set truebyte trigger3count=0; //stores the counts past since trigger 3 was set

Trueint angleChange=0;void setup(){ Wire.begin(); Wire.beginTransmission(MPU_addr); Wire.write(0x6B); // PWR_MGMT_1 register Wire.write(0); // set to zero (wakes up the MPU-6050) Wire.endTransmission(true); Serial.begin(9600); pinMode(11, OUTPUT); digitalWrite(11, HIGH);}void loop(){ mpu_read(); //2050, 77, 1947 are values for calibration of accelerometer // values may be different for you ax = (AcX-2050)/16384.00; ay = (AcY-77)/16384.00; az = (AcZ-1947)/16384.00; //270, 351, 136 for gyroscope gx = (GyX+270)/131.07; gy = (GyY-351)/131.07; gz = (GyZ+136)/131.07; // calculating Amplitute vactor for 3 axis float Raw_AM = pow(pow(ax,2)+pow(ay,2)+pow(az,2),0.5); int AM = Raw_AM * 10; // as values are within 0 to 1, I multiplied // it by for using if else conditions Serial.println(AM); //Serial.println(PM); //delay(500); if (trigger3==true){ trigger3count++; //Serial.println(trigger3count); if (trigger3count>=10){ angleChange = pow(pow(gx,2)+pow(gy,2)+pow(gz,2),0.5); //delay(10); Serial.println(angleChange); if ((angleChange>=0) && (angleChange fall=true; trigger3=false; trigger3count=0; Serial.println(angleChange); } else{ //user regained normal orientation trigger3=false; trigger3count=0; Serial.println("TRIGGER 3 DEACTIVATED"); } } } if (fall==true){ //in event of a fall detection Serial.println("FALL DETECTED"); digitalWrite(11, LOW); delay(20); digitalWrite(11, HIGH); fall=false; // exit(1); } if (trigger2count>=6){ //allow 0.5s for orientation change trigger2=false; trigger2count=0; Serial.println("TRIGGER 2 DECACTIVATED"); } if (trigger1count>=6){ //allow 0.5s for AM to break upper threshold trigger1=false; trigger1count=0; Serial.println("TRIGGER 1 DECACTIVATED"); } if (trigger2==true){ trigger2count++; //angleChange=acos(((double)x*(double)bx+(double)y*(double)by+(double)z*(double)bz)/(double)AM/(double)BM); angleChange = pow(pow(gx,2)+pow(gy,2)+pow(gz,2),0.5); Serial.println(angleChange); if (angleChange>=30 && angleChange trigger3=true; trigger2=false; trigger2count=0; Serial.println(angleChange); Serial.println("TRIGGER 3 ACTIVATED"); } } if (trigger1==true){ trigger1count++; if (AM>=12){ //if AM breaks upper threshold (3g) trigger2=true; Serial.println("TRIGGER 2 ACTIVATED"); trigger1=false; trigger1count=0; } } if (AM trigger1=true; Serial.println("TRIGGER 1 ACTIVATED"); }//It appears that delay is needed in order not to clog the port delay(100);}void mpu_read(){ Wire.beginTransmission(MPU_addr); Wire.write(0x3B); // starting with