[Tinyos-help] TinyOS 2.x Tmote Sky RSSI value and node distance relation

2007-07-30 Thread Peizhao Hu
Hi I know there is a long discussion about location service using RSSI value of CC2420 chip. But when I tried to measure the RSSI values from received packets sent every second, it seems very instable even in a range of less than 1 meter. // configuration components CC2420PacketC; NRCMS

Re: [Tinyos-help] Antitheft compile warnings on new platform

2007-07-30 Thread Philip Levis
On Jul 30, 2007, at 6:39 AM, Todd Roper wrote: Phil, Thanks again for the quick reply! I asked the original question because there seems to be a lot of overhead coming from the root node. I have a BaseStation app set up to sniff what is going on close to the Root, and I see packets every

[Tinyos-help] Re: BaseStationCC2420 - cannot get LISTEN data after initial about 10 data.

2007-07-30 Thread DAE HEE KIM
Hi. I think I need to clarify my question. I am using BaseStationCC2420 in order to retrieve packet data as well as find out the delivery in PC through serial cable. I combined BaseStationCC2420 with my program which needs saving of data packets for a short time. When I didn't save data packets

Re: [Tinyos-help] how to read analogue input on telosb (T-Mote Sky)?

2007-07-30 Thread Michael Schippling
Well, yeah...But doesn't every platform also have the "raw" ADC implementation which provides exactly the same interface, with a (well, to my low-level mind) more straightforward connection to the external world? Admittedly there are some 'tricks' that need to be performed to get, e.g., the micasb

Re: [Tinyos-help] how to read analogue input on telosb (T-Mote Sky)?

2007-07-30 Thread Joe Polastre
> What you will find is that it is a dimly veiled layer over an ADC input, > which, IMHO, just obscures and obfuscates the usage... Yes, however every platform has a DemoSensor, which allows demos (not applications) to be written and compiled irregardless of the platform (thus the prefix "Demo")

Re: [Tinyos-help] Java configuration problem

2007-07-30 Thread Michael Schippling
Assuming you already have .../tinyos-*/tools/java in your CLASSPATH, there's probably nothing more you can do to help. It seems that the no arg constructor Message() is private in tools/java/net/tinyos/message/Message.java, and bean-like systems usually use those constructors as the default insta

[Tinyos-help] Error occuring in temp file.

2007-07-30 Thread Christopher Jenkins
Hello, I've been in the processing of converting the cricket platform file to behave more like the mica2 to add mesh support. When I go to compile, I get the following output: mkdir -p build/cricket compiling XMeshCountToLeds to a cricket binary, using binary components ncc -o build/cricket/m

Re: [Tinyos-help] how to read analogue input on telosb (T-Mote Sky)?

2007-07-30 Thread Michael Schippling
Did deeper into DemoSensor. First of course you have to figure out which one and where it is...I don't (yet) have a tmote dev environment, but for the Mica's it's in tos/sensorboards/micasb/DemoSensorC.nc What you will find is that it is a dimly veiled layer over an ADC input, which, IMHO, just o

Re: [Tinyos-help] Serial Forwarder

2007-07-30 Thread Michael Schippling
As far as I know moteIF is pretty much it in Java. You can use it to connect directly to the serial port on the MIBs, etal. If you want to slim things down, look at Packetizer.java where most of the rubber meets the road. Also there are examples in C in the tools tree, and C# seems to be possible

[Tinyos-help] Fwd: Sensing Light with Tmote (Sky)

2007-07-30 Thread Angela Perez
Actually, I found this http://mail.millennium.berkeley.edu/pipermail/tinyos-help/2007-July/026360.htmland it explains it - thanks to *Aleksandr. Tried the example just now and it works :) Sorry for x-posting. Angela * -- Forwarded message -- From: Angela Perez <[EMAIL PROTECTED]> D

Re: [Tinyos-help] motor for 5 seconds

2007-07-30 Thread André Miguel de Almeida Marrão Rodrigues
I'm not sure... But why don't you define a timer to fire 5 seconds in the future? André - Original Message - From: Dev Narasimhan To: tinyos-help@Millennium.Berkeley.EDU Sent: Monday, July 30, 2007 3:47 PM Subject: [Tinyos-help] motor for 5 seconds Hi. I'm trying to fi

[Tinyos-help] Sensing Light with Tmote (Sky)

2007-07-30 Thread Angela Perez
Hi Everybody, Does anybody have any code for T2, to read values from Light, Temperature or Humidity Sensors? I 'm new to TinyOS, and I follow the tutorial, but only has code for Voltage. Thank you very much in advance Angela ___ Tinyos-help mailing list

[Tinyos-help] Java configuration problem

2007-07-30 Thread Alessandro Turella
Hi guys, I'm using a debian box, with netbeans gui, I've installed tinyos by apt-get etc. I get an error in netbeans: cannot find symbol symbol : constructor Message() location: class net.tinyos.message.Message i don't know what's wrong, I've imported the namespace with import net.tinyos

[Tinyos-help] motor for 5 seconds

2007-07-30 Thread Dev Narasimhan
Hi. I'm trying to find a way to write a command that can run a DC micromotor for 5 seconds before setting the PWM signal to low and stopping the motor. I know I should use the Timer command, but how do I incorporate the length of time? ___ Tinyos-help mai

[Tinyos-help] Are there any relation between saving data packet and LISTEN(by serial cable) ?

2007-07-30 Thread DAE HEE KIM
Hi. I am using TinyOS2.0.1, MIB510, micaz. Also, I am making a multihop network protocol. Status) For example, node1 --> node 2 --> node 3 (baseStation) (--> : means the route that packets are delivered) node 3 is baseStation node whichs use baseStation Application. I coul

RE: [Tinyos-help] Antitheft compile warnings on new platform

2007-07-30 Thread Todd Roper
> Hm. You should ignore it. It occurs because the root node does not > send packets with collection, merely forwards them. Therefore, the > CLIENT_COUNT is zero (there are no sending clients). > > Phil Phil, Thanks again for the quick reply! I asked the original question because there seems to

[Tinyos-help] how to read analogue input on telosb (T-Mote Sky)?

2007-07-30 Thread Akos Maroy
Hi, I'm trying to read the analogue input channels from my T-Mote Sky mote (telosb platform), but even though I read through the sensor tutorial, I don't really know how. Can someone give me some help? I saw that there's an ADC interface, as defined in TEP 101. And on the telosb platfrom, I would

[Tinyos-help] Help - check RF channel status in TinyOS

2007-07-30 Thread SunYan
Dear all, Do you know any method or module can be used to tell whether the radio frequency channel is clear or busy in TinyOS. A RSSIADC.dataready event is used in tinyos MAC modules, so that I cannot build my event for RSSIADC.dataready. Even I can build the event, I cannot make this event to be