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Here you have a user pushing a button, but it could be any digital input, for
example, “water detected”, or even an analog input such as “furnace
temperature.”
Turn off the nodes when you are ready to begin installing the Portal software.
More about the Hardware
Since the Portal PC (the PC that the Portal software will be running on) has no radio of its
own, one of the SNAP nodes must act as a “bridge” for it. Portal will connect directly to
this bridge node, using either a USB or RS232 connection. Portal will then be able to
communicate to the rest of the SNAP nodes indirectly , by sending packets across the
directly connected bridge node.
Verify that the SNAP Stick is correctly connected to the PC’s USB port.
Device Configurations
The following table assumes you have not moved any of your RF Engines between the
different boards and does not apply to kits with the RF300 .
Synapse Network Evaluation Kit RF Engine Configurations:
Description
SN200 SNAP
Function
Portal
Antenna
Integrated
Power Amp
Yes
Receive Amp
Yes
Stick
interface
SN111
Photocell
External
Yes
Yes
End Device
Demonstration
Board
SN171
Buzzer
Integrated
Yes
Yes
Proto Board
It is also important to understand that SNAP Engines are not fixed to the boards on which
they’re provided in the EK2500 kit. You can move the engines between boards, if you
desire. For example, the SN171 Proto Board can be used with an RFET SNAP Engine
that has an external antenna.
A Photocell component is connected to Sensor Input terminals 1&2 on the
End Device . Note that the pullup-resistor strap is in the LOW range position,
with jumper J10 jumped, to properly condition this sensor type.
EK2500 Users Guide-v1.7
Page 17
of 42
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