“Fitness bands are getting very popular nowadays, which not only counts the footsteps but also tracks your calories burned, display heartbeat rate, showtime and many more. And these IoT devices are synced with the cloud so that you can easily get all the history of your physical activity on a smartphone. We have also built an IoT Based Patient Monitoring System where the critical data have been sent to ThingSpeak to be monitored from anywhere.
Pedometers are the devices that only used to count footsteps. So in this tutorial, we are going to build an easy and cheap DIY Pedometer using Arduino and accelerometer. This Pedometer will count the number of footsteps and display them on a 16x2 LCD module. This pedometer can be integrated with this Arduino Smart Watch.
ADXL 335 Accelerometer
LCD I2C Module
The ADXL335 is a complete 3-axis Analog accelerometer, and it works on the principle of capacitive sensing. It is a small, thin, low power module with a polysilicon surface-micro machined sensor and signals conditioning circuitry. ADXL335 accelerometer can measure the static as well as dynamic acceleration. Here in this Arduino Pedometer project, the ADXL335 accelerometer will act as a Pedometer sensor.
An Accelerometer is a device which can convert acceleration in any direction to its respective variable voltage. This is accomplished by using capacitors (refer image), as the Accel moves, the capacitor present inside it, will also undergo changes (refer image) based on the movement, since the capacitance is varied, a variable voltage can also be obtained.”