readme

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README for TestSnooze and OnOffApp
Author/Contact: [e-mail]

Description:

OnOffApp is an application the utilizes low power radio sampling
in order to turn the node "off" or "on".  The application is an
example of how to use the OnOff component, OnOff.nc, to have the
ability to switch the power consumption of the node remotely. When the
node is on, the Red LED will be on and vice versa.
This application will only run on the Mica2 and Mica2Dot platforms
with Chipcon CC1000 Radios.

TestSnooze is a basic application that illustrates the use of
the Snooze component to put the mote into a low power state
for a user-defined period.  The mote will be on, wait for
three Clock.fire() events, and then enter the low power state.
The soft state (variables, etc) of the application are preserved
in SRAM on the microprocessor.  One can notice the internal
private sleep() function causes the mote to sleep for 
4 seconds.  This application will only run on the Mica platform
with RFM radio.

Requirements:

OnOffApp has no additional requirements for Mica2/Mica2Dot.

Mica motes must be physically modified in order to Snooze.  Information
about the modification is available at:
http://webs.cs.berkeley.edu/tos/hardware/diode_html.html

Platforms:

OnOffApp demonstrates power management on Mica2/Mica2Dot

TestSnooze demonstrates power management on Mica

Tools:

Use "MessageInjector" in the MessageCenter java application to inject
an "on" or "off" message.  See package:
  net.tinyos.mcenter
in tools/java and
  onoff.h 
for OnOffMsg

Known bugs/limitations:

None

  OnOffApp: When the mote is in the 'Off' mode, the radio stack is put
  into the lowest possible duty cycle (< 1%).  If the node used to
  transmit the wakeup message (i.e. a TOSBase) is not in the same duty
  cycle mode, it make take a few transmissions for the target to
  'hear' the wakeup message.