1. Connect the Output pin of Pulse Sensor to the analog pin A1 of Arduino using a bread board.
2. Now connect the LM35 Temperature Sensor output pin to A0 of Arduino.
3. Then connect the I2C pin SDA to A4 and pin SCL to A5 of Arduino UNO board respectively.
4. Now take the bolt IoT module and connect the TX and RX pins of it to digital pins 4 and 6 of Arduino board respectively.
5. Now give a common 5V pin and common ground from Arduino board on to the bread board.
6. Then connect all the components’ VCC pins to 5V in parallel as shown in figure.
7. Connect all ground pins to common GND in parallel as shown in figure.
8. Now after connecting the Arduino board to system/laptop upload the code and run.