Wireless Pedometer with Intelligent Features

Overview

The wearable wireless pedometer was designed intelligently for calculating several statistics like the distance and speed a person has walked/run, the number of steps taken, and the amount of burned calories.

Details

There are two main components that comprise the project including the wearable sensor and the base station. An accelerometer, an RF transceiver, and an Atmel Mega644V microcontroller are included in the wearable sensor while an RF transceiver, an Atmel Mega644V, and MAX233 chip for RS232 serial communication are contained in the base station. The base station will receive the interpreted data from the wearable component to be displayed on the PC through RS232 serial communication with MAX233. A 3V battery source with two AA batteries in series is used to power the wearable module which can be placed around the leg of the user while on top of the user’s shoe, the accelerometer can be strapped.

The Atmega644V contains 64K bytes of in-system programmable flash memory. The use of Mega32 is not possible since the module is low-powered and can run on 3V. The accelerometer and wireless transceiver is connected to the MCU for data transmission using SPI through the Port B.