[Tinyos-help] How to read acceleration from mts400 sensorboardusing micaz

[Aurelien Francillon]

Le Tuesday 09 December 2008 10:23:47 Igor L Marques, vous avez écrit :
> For TinyOS 2.x look at the
> /tinyos-2.x-contrib/mts4x0
>

The code over there does not (yet) include the logic for the accelerometer. 
However all the switches logic is implemented and powering up the 
accelerometer should be easy (I'll commit it soon), in order to get data you 
will need a driver for the exact device, according to the datasheet it's 
directly connected to the adc. You are lucky, the driver already exist in the 
tinyos tree, unfortunately it's not present as an individual "chip" in it's 
own directory but as part of the mts300 sensor board code. 
However, the work should not be big to get data from the accelerometer, as it 
would be limited to power it up using the switch logic of the mts400 and 
reusing some parts of the driver from the mts300 board (in 
tos/sensorboards/mts300/Accel* ) . IMHO, the ideal would be to take the 
accelerator chip's specific code from the mts300 directory and move it to a 
stand alone chip driver  ( i.e. in tos/chips/ADXL202JE/ ) that would be used 
by the different "boards" ...

BTW, if you have something working I will be happy to commit it in 
tinyos-2.x-contrib/mts4x0

Best,
Aurélien