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A datalogger using Arduino Uno

Description

It's a standalone dataloggeur for motorbike trials. It records bike orientation, progression, altitude, accelerations... The goal is to use it's data to generate automatically new sections for Open trial, the motorbike trial game.

Prototypes and parts list


Fig - 1 : A datalogger (the first version)
 
 

Fig - 2 : A datalogger prototype for the "Open trial" motorbike trial game
 

Part list for figure 2 :

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Number Name Description I2C address
01 Box Velleman -
02 Datalogger Adafruit datalogger breakout ADA/254 -
03 Micro SD card 4 Go (or more) -
04 Altimeter MPL3115A2 / Sparkfun.com 0x60
05 3D compass HMC5883L / Sparkfun.com 0x1E
06 3D accelerometer MMA8452Q / Sparkfun.com 0x1D
07 Clock MR512 HMC5883L / Microbot.it 0x68
08 Thermometer MR312 TCN75A / Microbot.it 0x48
09 Batteries box - -
10 Arduino Uno www.arduino.cc -
11 Progression sensor Rear gear sensor (Gas Gas) -
12 Led Record state indicator -
13 Start / stop Waterproof press-button -

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Noisy accelerometer signal processing test

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(Signal form a MMA8452Q accelerometer)




Fig - 10 : The noisy accelerometer original signal
 
 
Fig - 11 : Signal fig. 10 filtered by a lowpass filter
 

Fig - 12 : Signal fig. 10 filtered by a median filter
 
 

Fig - 13 : Signal fig. 10 filtered by Fourier transform
 

Fig - 14 : Fourier transformation
 
 

If you are interrested, you can download :

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Arduino software

Comming soon, after experimentations