Time and Use of Accelerometer Data Rate
hi everyone, i'm thinking of starting project accelerometer, , pretty want quite large amount of data.
the thing firstly want obtain accelerometer data @ 20hz, , want able save in array , possibly adding or it. arduino fast enough able save integer values without slowing down data rate?
secondly hoping obtain values utilizing 2 things, first off thought use timer sort of thing obtain accelerometer values (3 axis) @ twentieth of second, other thing want have real time of data if possible , real time mean 12:05 sort of thing. wondered if there real time function use accurate millisecond take samples @ rate want without blocking system delay in case want data in between while being able use sort of clock speed want.
it might better if use on board clock, since want real time every minute or that.
if helps i'm using atmega32u4 microcontroller.
thanks!!
the thing firstly want obtain accelerometer data @ 20hz, , want able save in array , possibly adding or it. arduino fast enough able save integer values without slowing down data rate?
secondly hoping obtain values utilizing 2 things, first off thought use timer sort of thing obtain accelerometer values (3 axis) @ twentieth of second, other thing want have real time of data if possible , real time mean 12:05 sort of thing. wondered if there real time function use accurate millisecond take samples @ rate want without blocking system delay in case want data in between while being able use sort of clock speed want.
it might better if use on board clock, since want real time every minute or that.
if helps i'm using atmega32u4 microcontroller.
thanks!!
i hope programmer , know electronics.
why want timing millisecond, , 20 samples second ? may timing drift little ?
an microsd card can added arduino, storing 4kbyte per second.
the mpu-6050 i2cdevlib has default sample rate of 100hz. 100hz okay , can store data.
you can send data computer via serial on usb communication.
the rtc ds1307 can synchronized arduino timing:
http://playground.arduino.cc/code/time
use link pcjr.com newer version:
http://www.pjrc.com/teensy/td_libs_time.html
but don't know millisecond accuracy.
why want timing millisecond, , 20 samples second ? may timing drift little ?
an microsd card can added arduino, storing 4kbyte per second.
the mpu-6050 i2cdevlib has default sample rate of 100hz. 100hz okay , can store data.
you can send data computer via serial on usb communication.
the rtc ds1307 can synchronized arduino timing:
http://playground.arduino.cc/code/time
use link pcjr.com newer version:
http://www.pjrc.com/teensy/td_libs_time.html
but don't know millisecond accuracy.
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