Overview
This sport accelerometer uses a transmitter with accelerometer that reads data and transmits to a computer with DSP while being used in athletics to determine the wrong foot steps as the athletes run.
Explanation
The development of the device includes all the holes which contain the programming header called ICD located above the power label which has the serial lines and above the ON/OFF switch for the external power. These headers serve the purpose of providing backup by plugging wires in the event of lost wireless connection due to low battery. Other components used are the low dropout voltage regulator (LDO), lithium battery charger, Xbee, and the accelerometer. A Digital Signal Processing (DSP) was implemented in order to recognized sounds as the logging starts on a whistle blow.
The result of the two layer lip was due to the location of the lithium battery under the PCB. On order to get proper data for plotting, a gyro should be added to provide help after the accelerometer was attached. The use of Xbee module may not be necessary and other alternatives can made. A simple 868 MHz radio transceiver can be used to provide communication.
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