The experiment

We are going to measure the vertical distance i the lift between C1 and C2

The travel/experiment shall be:

1. enter the lift in FRB7C at top floor

2. place AAUIMUKIT on the floor and ensure it can tilt

3. wait 1 minute

4. order a trip to the cellar

5. wait 1 minute

6. order a trip to top floor

7. wait 1 minute

8. repeat experiments so you will have 2 times descending an two times ascending

9. end experiment

Please ensure that the AAUIMUKIT is located stable on the floor in the lift

The offTheShelfCode

• sampling every 40 msec (25 hz)

• sample and save 3 axis acceleration

• air pressure

• air pressure converted to altitude

• air temperature

the logger code src/sketchbook/mpu606xbmp285rob3no3/mpu606xbmp285rob3no3.ino

REMEMBER: Take sd card and save a copy of your data on two PCs (just 2 b sure)

Openlog the micro sdcard logger

The program above writes with 38400 to the openlog so we need a config file on the sdcard

About openlog See openlogger

(if no configfile it initialise itself to 9600 baud)

So please dont delete the config file as it sets comm speed to 38400.

If no config.txt file it reverts to 9600 on the sd card writer ( openlogger

Just in case here is contents of config.txt

38400,26,23,0,1,1,0
baud,escape,esc#,mode,verb,echo,ignoreRX

The data

Your datafile should look something like src/data/shield1/LOG00082.TXT

A plot of all data . From top acc x,y,z gyro x,y,z press alt(m)

view large plotall.png

Next step is aftermath - dataprocessing

See liftexpres.html is how I would do it.

THE BEER-WARE LICENSE (Revision v 42) jensd@jensd.dk wrote this file.
As long as you retain this notice you can do whatever you want with this stuff on these pages.
If we meet some day, and you think this stuff is worth it, you can buy me a beer in return :-)
(C) Jens Dalsgaard Nielsen
credit for license this goes to phk@FreeBSD.ORG