This week I had done my hardware part. The hardware part include soldering, design protype and drill PCB board. In this protype, I had made 2 design which is normal size and small size. For small size, it has problem because battery drain too fast. So, i had change plan to build to a normal size. For normal size, it used two battery 9V, each battery for Arduino and bluetooth device. I had combine 9V battery to power up Arduino and bluetooth device but it seems no support because when running, the bluetooth sometimes not send the data to the android. This can be no enough power to power up the bluetooth. So I had to used 2 9V battery to power up Arduino and Bluetooth. For Bluetooth, I had made regulator to 5V since the operating for bluetooth is 5V.
Figure 1: soldering components
Figure 2: Soldering the sensor and connect to the circuit
Figure 3: Screw the casing of pedometer
Figure 4: Make a hole for LED power indicator
Figure 5: 2 9V battery is connect
Figure 6: sewing the strap on ankle band
Figure 7: Pedometer small size
Figure 8: Pedometer normal size
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