Is 6LowPan going to be an international standard?
This message went out on the IETF 6lowpan mailing list the other day.
This IETF WG is exploring how to provide IP networking on low-power
wireless (currently, just 802.15.4). I forwarded the message here in
case anyone is interested in
yards is even better. I have done range testing
with the standard antenna and some external antennas in an open hay
field. We had similar results to what you are getting when they are on
the ground.
Matt[EMAIL PROTECTED]
wrote: -
To:
Chang Li [EMAIL PROTECTED]From: Matt
RPMpackages are not platform independent. By
using Zip packages I can embed these packages into a new platform such as
cygwin. Many Open Source software provide standard Zip distribution such as
Eclipse, PHP, Cygwin.
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What is the maximum distance between two motes who can communicate
outside by your chip antenna?
Hi,
Does anyone know the dBi gain of the PCB antenna on the tmote sky
modules?? We have layed out a board with fractus 1dBi gain antennas,
and we're not getting close to the range of the
I can get the message from the UART serial port
now. How can set the AT series to get the AM message like the Java Listen?
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How to get Java Listen format message from the
ListenRaw format? For example
7e42 040108 01 047d 5d18 000100
87c17e --ListenRaw20 bytes
040108 01
047d
18000100 -- Listen 14
bytes
And there were some packets without the
tail 7e in raw message,
werethey bad packets?
How to use a SPI device along with telosb's IDC
connector? I want to use USART0 pins or I2C pins
for SPI link. However SPI0 has been used by
CC2420 and Flash Memory, is itpossible to connect third device? I found
the I2C examples where are the SPI examples? Another way is to share SPI1 with
:
-
To:
tinyos-help@Millennium.Berkeley.EDUFrom: "Chang Li"
[EMAIL PROTECTED]Sent by:
[EMAIL PROTECTED]Date: 06/23/2006
11:41AMSubject: [Tinyos-help] Using SPI with Telosb Connector
How to use a SPI device along with telosb's IDC connector?
I want to
In the ADC convertion oftelos the V =
Value/4096*Vref, what is the meaning of
4096?Does it apply for all the ADC convertion
for MSP430 in TinyOS?
Chang
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You can use a multimeter to connect the wire of
battery to get the real value.
Itwill be less than 100mA. In theory a MCU is
6mA but other ICs may be far
more than that.
Chang
- Original Message -
From:
chandresh parekh
To: tinyos help
Sent: Saturday, May 27, 2006
I bought 8 AA batteries in the 1 dollar store. It only run 20 hours then the
leds
were dim. The voltage of the battery was under 2.0v. 18.2+mA is the current
consumption of CC 2420. There are MSP430 and Flash Memory as well as
othere ICs. I am wondering why have tested the current of 50 to 60 mA
Current TinyOS does not support malloc.No
dynamicmemory allocation is available.
Chang
- Original Message -
From:
Tran
Trong Tri
To: Tinyos-help@Millennium.Berkeley.EDU
Sent: Tuesday, April 11, 2006 10:19
PM
Subject: [Tinyos-help] About
"malloc"
Hi,
allocation in the
future.
- Original Message -
From: Tran Trong Tri
To: Chang Li
Cc: Tinyos-help@millennium.berkeley.edu
Sent: Tuesday, April 11, 2006 11:13 PM
Subject: Re: [Tinyos-help] About malloc
Hi,
Thanks for your help...But if you look at the file adjacency_list.c
A pin compatible MCU family may have 4:1, 8:1, 16:1, ... ratios.
Unlike othere embedded applications, RAM size less than 4KB
is not enough for WSN applications. To get code size down, a
MCU with small size flash can be used.
My point is that the extreme inline optimization is not necessary
inline will inflate code size. Look at the MSP430F1611 mote
its Code/Data Rate = FLASH/RAM Rate = 48KB / 10KB = 4.8
The FALSH/RAM Rate of tinyos applications:
Blink 2606B/40B = 65.15
SurgeTelos 17140B/670B = 25.58
SimpleCmdTelos 11516B/359
Do you means to modify Blink code to run Deluge?
Why run BSL twice to get Deluge work?
Chang
- Original Message -
From: Joe Polastre [EMAIL PROTECTED]
To: Gelu Contiu [EMAIL PROTECTED]
Cc: tinyos-help@Millennium.Berkeley.EDU
Sent: Tuesday, March 28, 2006 12:17 PM
Subject: Re:
, Chang Li [EMAIL PROTECTED] wrote:
Is TinyOS 1.x MSP430 binary compatible with TI's MSP430 binary? TI's gdb
loader doesn't recognize tinyos' format.
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If my tinyos code is 512KB but the internal flash memory of MCU is only
50KB, can I load and run this program? Suppose the use of SRAM is small
enough. My program is supposed to use a large amount of static strings.
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Try SimpleCmd sample and modify Makefile to COMPONENT=Bcast. This is a
special case of multihop broadcast.
Hi everyone:
Recently I try to use one mote as a message repeater, Here is the
scenario:
Assume that there are 5 sensors in the network, and their id are
0,1,2,3,4 respectively.
I have similar experience. After I were trying to write in 4K+1, 4K, 4K+3,
I got it right. I am not sure which sequence is right. The overlap may cause
flash writing error.
Hi,
I am using TinyOS-2.0 and trying to write into flash memory using Block
write. When I write first block of data it
I tried to "make telosb" in the apps/TinyDBApps but
therewas an error andcompiler was terminated. The "make pc" and
"make mica2"worked fine.TinyOS version is 1.1.15
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I tested TinyOS 2.0 beta for windows with Cygwin today. It is better than
1.x.
I just list several troubles.
1. The rpm -Uvh should be replaced by rpm -ivh --ignores --force
Otherwise the rpm packages might not be installed.
2. msvcr71.dll is missed in the package for MSP430 tools.
3. JDK
2. msvcr71.dll is missed in the package for MSP430 tools.
Which tool actually needs that? (Kristin, can you look into this?)
I think a DLL was compiled with Visual Studio C++ 2003.
3. JDK 1.5 was installed in another path but could not find the javac in
command line.
Was this Sun's JVM?
Iknow TOSSIM is a simulator but does
itrun along witha real mote network?
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Title: Message
I formatted the Flashto runcode in
FormatFalsh and then install DelugeBasic
and run Serial Forwarder. However when I tried to
run
% java net.tinyos.tools.Deluge --ping
the error message "write packet error." was displayed.
What is the problem? The TinyOS version is 1.1.15.
Most Litium Ion batteries are 3.8V so a regularator is required.
250mAh may be enough for a mote to run. I do not know the
max current for Flash write.
Chang
Hi Terence, We had the same question some time ago, and we found that 3
1,2V
batteries in series, when new, may have next to 3,8V,
Below is from the paper.
At around 6.5 hours, the capacitor voltage exceeds the charging threshold
of 4.4V and the battery is
below 3.5V, resulting in a charge pulse (as seen by the sharp drop in
capacitor voltage in A and increase
in battery voltage in B). This rapidly transfers most of the
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