I'd like to add another suggestion for simple network debugging. Add a terminal-style serial LCD display to one of the motes on the net to watch the raw traffic: http://www.seetron.com/slcds.htm
Bruce > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > [EMAIL PROTECTED] > Sent: Friday, July 26, 2002 6:40 PM > To: [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED] > Subject: [Tinyos-users] Useful suggestion > > > > Hi, > > Thought I'd mention a debugging technique that I found > useful and which others may also. > > It's often difficult to tell what's going on inside > a network of motes. You can get some information by > sending out RF debug messages or sending data to a UART or > by blinking the LED's. These methods have their limitations. > RF and UART messages are limited in how fast they can be received > and how close you are to the area of interest, especially > when you have a lot of senders. The LED's are only three bits > of information. > Another technique is to program a mote (or several of them) > as probes that will light their LED's in reaction to specific > events. This is especially useful for detecting the presence > or absence of RF messages. You can wave your probe mote > around your network and find out what is happening in > the RF world. You could do the same with a basestation > connected to a laptop, but the LED's on a mote are > much easier to see and correlate with what the LED's > on your network motes are telling you and you don't have > to deal with a cable. You can also program the probe > mote to light an LED under very specific conditions > (i.e., "received msg and 4th data byte is 0x1c"). > > Ron > _______________________________________________ > Tinyos-users mailing list > [EMAIL PROTECTED] > http://mail.Millennium.Berkeley.EDU/mailman/listinfo/tinyos-users > _______________________________________________ Tinyos-users mailing list [EMAIL PROTECTED] http://mail.Millennium.Berkeley.EDU/mailman/listinfo/tinyos-users
