1. Bluetooth Pedometer

2. Main equipments we used
Microcontroller (PIC18F4620).
Accelerometer sensor ADXL-335.
Bluetooth device (Gold Mate).
Mobile device (that supports java) where we installed the software to deal with received data from the circuit.

3. What can we get?? Step count : how many steps that we did.
Distance : the distance that we passed during the exercise .
Speed : current speed for the user.
Calories : the calories that the user burned.

4. Calculations
Steps count:
From the outputs of the ADXL-335 device

5. Step detection state diagram

6. Calculations cont.. Distance: D = #of steps * step_distance.
step_distance = (factor * tall)/100.
Speed :
S step = D step /time step
Calories:
C = cal_factor * weight(in bound)* distance

7. How to use ?? Install the software on your mobile.
Tie the circuit around your leg.
Turn the power on.
Search for Bluetooth devices from your mobile.
Connect to our device and then search for services.
Open the application.
Start your exercise and monitor the results.

8. Problems we faced
The main and the only problem was the availability of the equipments in the market.

9. Thanks for your attention Ayman Melhem Ahmad Baker Instructor: Dr
Thanks for your attention Ayman Melhem Ahmad Baker Instructor: Dr. Ala’a Almasri