Hi
Eric is right with the comments on the SD performance.
Just to add that I think the problem is not on FatFS but on the SD driver that
does not support
multiples writes; please see the last diagram in
http://elm-chan.org/docs/mmc/mmc_e.html.
At the time we made the measurements I did not
Why not use MAX3232 or similar?
Regards,
André
- Original Message -
From: Eric Decker
To: Sean Dekker
Cc: tinyos-help@millennium.berkeley.edu
Sent: Thursday, December 06, 2012 7:11 PM
Subject: Re: [Tinyos-help] TelosB TTL voltage levels of UART0
you probably want to
Hi
Janos was kind to send to me and to the list:
The code is in tos/chips/msp430/timer. Start from
LocalTimeHybridMicroC.nc, and follow the wirings from there. The most
important part is in Msp430HybridAlarmCounterP.nc, which shouldn't be
too hard to port to AVR.
André
- Original
Hi Janos
I have read the following email, and that technique could be usefull for my
work, so I would like to have access to that code, where can I find it?
Basically, I would like to measure the time in scenarios where the processor
could be in sleep mode, with more precision than the 32khz
Hi
If all you want is to output 0 or 1 on pin 10, I would say that you just have
to use port 6.3. In that case you do not neet to use any resistors.
But Eric could confirm (or not) my opinion.
Next, study one of the available device drivers to learn how to select the port
for IO and how to
yes
- Original Message -
From: Mubashir Rehmani
To: André Rodrigues
Cc: Eric Decker ; tinyos-help@millennium.berkeley.edu
Sent: Wednesday, February 29, 2012 9:57 AM
Subject: Re: [Tinyos-help] ADC port
Hi Angré,
Yes, all i want is to have output 0 or 1 on pin 10. If i
Could this help? - http://www.sparkfun.com/products/9544
Regards,
André
- Original Message -
From: Eric Decker
To: Prasanna Karthik V
Cc: tinyos-help@millennium.berkeley.edu
Sent: Saturday, May 14, 2011 8:00 PM
Subject: Re: [Tinyos-help] Spi Testing
In short,
Hi
The MSP datasheet says that but on the other way the TMoteSky datasheet
claims 2.1 as the mininum for running at 8MHz.
Something is wrong...
Regards,
André
- Original Message -
From: Michael Schippling sc...@santafe.edu
To: David Conde dco...@citic.es
Cc:
Hi
From CrossBow: http://www.xbow.com/Products/SelectCountry.aspx?sid=286
ES1101 - Soil Moisture and Soil Temperature The ES1101 Watermark Sensor
(granular matrix sensor) is a soil moisture and soil temperature sensor.
Multiple ES1101 sensors can be connected to the eKo node to measure soil
Hi
1) From the TelosB node datasheet you get the minimum voltage level the node
shoud operate (let's say 2.1v). I'm assuming you do not have extra hw
connected, if so, add its requirements.
2) You could be using NiMH (rechargeable batteries) or AA alcaline
non-rechargeable batteries. The
Hi
Just see 4 graph (for alcaline) and 5 graph (for nimh).
Regards,
André
- Original Message -
From: David Conde
To: 'Arik' ; 'Nicola Bressan'
Cc: tinyos-help@millennium.berkeley.edu
Sent: Tuesday, October 27, 2009 11:19 AM
Subject: Re: [Tinyos-help] Battery Level for
With the link: http://www.powerstream.com/AA-tests.htm
- Original Message -
From: André Rodrigues
To: David Conde ; 'Arik' ; 'Nicola Bressan'
Cc: tinyos-help@millennium.berkeley.edu
Sent: Tuesday, October 27, 2009 11:21 AM
Subject: Re: [Tinyos-help] Battery Level
Hi
You have code for that in the sensorboard directories and in the examples
directories.
Regards,
André
- Original Message -
From: Javier Barbarán barba...@lcc.uma.es
To: André Rodrigues andremiguelrodrig...@gmail.com
Cc: Michael Schippling sc...@santafe.edu; tinyos forum
tinyos
Hi
That board have an internal 12 bit ADC.
From the datasheet it seems it also have an internel voltage reference -
because they multiply the reading by 2.5v.
In case not, you should take care of the battery voltage at the reading
time.
Regards,
André
Envispot
- Original Message
Hi
I have changed the ADC references from _OFF to _2_56 to _RSVD and all seem to
give me the same.
Is AREF connect to VCC of something fixed that does not allow to use the
internal references?
Regards,
André Rodrigues___
Tinyos-help mailing list
Hi
1) TelosB does not have accelerometers
2) Telos B have an expansion conector that enables access to VCC, GND, ADC0,
ADC1 and ADC2.
3) I used an MMA7260 3 axis accelerometer from:
http://www.sparkfun.com/commerce/product_info.php?products_id=252
Regards,
André
Envispot
- Original
Hi
1) In the Atmega 1281 datasheet, ADC section, is says that when we change the
ADC reference voltage the first conversion could not be correct and recomend
reading twice.
In the ADC implementation for T2 there is a reference to a function called
isPrecise that seems to deal with this.
My
something wrong?
I should note that this behavior was replicated in 3 motes with a few
diffente addons.
Best regards,
André Rodrigues
- Original Message -
From: Michael Schippling sc...@santafe.edu
To: Faisal Aslam as...@informatik.uni-freiburg.de
Cc: tinyos-help tinyos-help
something wrong?
I should note that this behavior was replicated in 3 motes with a few
diffent addons.
Best regards,
André Rodrigues
___
Tinyos-help mailing list
Tinyos-help@millennium.berkeley.edu
https://www.millennium.berkeley.edu/cgi-bin/mailman
software modules.
Could exist something similar on the IRIS? In the radio code nothing
appears
Regards,
André
- Original Message -
From: Michael Schippling sc...@santafe.edu
To: André Rodrigues
Hi
I've been working with a driver for the sht11 on MTA300, adapted from TelosB by
Javier Almansa Sobrino. I'm using it in an IRIS mote.
It seems to be reading the sensor; my next step was trying to print some values
with printf.
The problem is that if I add (just add, commented in the code)
Hi
I think this platform is not supported by TinyOS.
Regards,
André Rodrigues
- Original Message -
From: Urs Hunkeler u...@gmx.ch
To: aldo amoyaort...@gmail.com
Cc: tinyos-help@millennium.berkeley.edu
Sent: Thursday, April 30, 2009 8:00 AM
Subject: Re: [Tinyos-help] Problems with mote
on radio drivers out there, just ask the right persons :)
- Original Message -
From: aldo
To: André Rodrigues
Cc: Urs Hunkeler ; tinyos-help@millennium.berkeley.edu
Sent: Thursday, April 30, 2009 4:50 PM
Subject: Re: [Tinyos-help] Problems with mote TI MSP430
Thank you
Hi
Thanks Miklos.
I give some time to get other opinions
Without more replies to my email, I think security (packet encryption) in T2
is not already supported.
Regards,
André
- Original Message -
From: Miklos Maroti mmar...@math.u-szeged.hu
To: André Rodrigues
Hi
I would like to know:
1) How to enable security in T2 via packet encription? There is some T2
component that already implements that?
2) In the specific case of IRIS node that does not support 802.15.4 AES in
hardware (not available in the RF230) it's possible?
Best regards,
André
regards,
André Rodrigues
- Original Message -
From: Adeel Akhtar
To: tinyos-help
Sent: Tuesday, December 02, 2008 9:45 PM
Subject: [Tinyos-help] tossim help required
hi all
i am working with tossim for tinyos 2.x and in tutorial i found a java based
tool to generate
Hi,
Thanks, we will do that.
So now you have an IRIS node that gets temp / humidity from the sht11; the
energy management works well?
Putting the sensor in sleep mode after reading?
Regards,
André
- Original Message -
From: Janos Sallai
To: André Rodrigues ; tinyos-help
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