TWR-RF-SNAP User’s Manual
Page 12 of 22
3.5
SNAP SN132 USB Dongle
The SNAP SN132 USB Dongle is included with the TWR-RF-SNAP. The SN132 features an RF100 RF
Engine. It is not only its own free-standing node in the SNAP network, but also provides the PC and
Portal software a bridge into the SNAP network. Refer to the lab material associated with the TWR-RF-
SNAP module for more about the USB dongle.
RF100 RF Engine: Synapse Part # RF100P86
SNAP – Instant-ON mesh network stack
Powerful, reliable wireless connection in 2.4GHz license-free band
Spread spectrum (DSSS) technology surmounts noisy environments
Optional, Transmit amplifier (18 dBm) for best-in-class range
Embedded “F” antenna
Receive amplifier (10 dBm) standard
Up to 3-mile range (with external antenna)
Low power modes, down to 2.5 μA with internal timer running
60k flash, with 20k free for over-the-air uploaded user apps
FCC Certified on all 16 channels
Figure 4 - SNAP SN132 USB Dongle
The following table describes the how to control the output pins to obtain desired colors. Notice that
the LED lines are active LOW.
Desired LED Color
Value of GPIO Pin 0
Value of GPIO Pin 1
Red
Low
High
Green
High
Low
Amber
Low
Low
OFF
High
High
A second green LED is used to indicate that power is being supplied to the module. It cannot be
controlled by the user.
