Pc Sensor Monitor Application; Energy Awareness; Ez430-Rf2500-Seh Sensor Monitor - Texas Instruments MSP430 User Manual

PC Sensor Monitor Application

10. Remove the eZ430-RF2500T target board from the emulator. It has now been programmed as the
End Device.
11. At the top right corner of the screen, click the C/C++ button to return to the C/C++ Programming
Perspective. Click the >> arrows if the button has moved off-screen.
12. Right-click the "SEH Sensor Monitor" project name in the C/C++ Projects window and select Active
Build Configuration > Access Point - Debug.
13. Click Project > Clean...
14. Click Run > Debug Active Project or click the green Run arrow button.
15. Connect the first eZ430-RF2500T (End Device) target board to the battery pack or the Solar Energy
Harvesting board.
16. Open the eZ430-RF2500 Sensor Monitor PC program installed on the PC to watch the network form
or receive data from the wireless node.
4.2 PC Sensor Monitor Application
The Sensor Monitor PC application is a graphical representation of the star network and displays the
sampled data from each wireless device. The center node is the Access Point and the attached nodes are
the End Devices, which display their temperature, voltage, and their transmission frequency. The physical
distance of the End Device from the Access Point is simulated on-screen by measuring the signal strength
(RSSI) of the received signal. The number of End Devices can be expanded by adding more wireless
nodes to the network as shown in

4.2.1 Energy Awareness

Because the End Devices are 'Energy Aware', they dynamically switch power sources from the solar cell
to the EnerChip if sufficient ambient light is not available to run the system. The node's color on the PC
Sensor Monitor window also displays its current power source. The node is yellow when powered from the
solar panel or the traditional battery back and is blue when running from the EnerChip.
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eZ430-RF2500-SEH Sensor Monitor

Figure 4-1.
Figure 4-1. eZ430-RF2500-SEH Sensor Monitor
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SLAU273C – January 2009 – Revised May 2010
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