RF-TO-USB2-RD Silicon Laboratories Inc, RF-TO-USB2-RD Datasheet - Page 6

• Manufacturer Part Number: RF-TO-USB2-RD
• Description: RF TO USB EVAL REF DESIGN
• Manufacturer: Silicon Laboratories Inc
• Series: -r
• Type: Sensor Demor

Specifications of RF-TO-USB2-RD

• Frequency: 915MHz
• Lead Free Status / Rohs Status: Contains lead / RoHS non-compliant
• For Use With/related Products: -
• Other names: 336-2139

RF-to-USB-RD2
4. Node (1–4)
5. Temperature Window
6. Potentiometer Window
Note: The second generation RF to USB Reference Design is not backward-compatible with the earlier version because the
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Up to four nodes may be connected to the PC application. The associated node window becomes enabled (or
ungreyed) as each node associates.
This demonstration uses a very simple association scheme. Each node board powers up unassociated. On the
first button press, the node requests a node ID from the dongle. The dongle assigns IDs in a round-robin
fashion, i.e. 1-2-3-4-1-2-…
Note that there is no disassociation, and given the round-robin association scheme, it is possible to have two
boards associated with the same node ID, particularly if power is cycled on the node boards. Reset is
accomplished by disconnecting and reconnecting the PC application, cycling power on the node boards, then
reassociating each by pressing its button.
This displays the node's temperature, as measured by the Si1014's on-chip temp sensor. The node will transmit
temperature data periodically, then enter a low-power sleep mode after several seconds. Press the node's
button to wake and send again.
This displays a normalized ADC reading from the node. The voltage measured by the ADC is set by a
potentiometer on the board.
over-the-air protocol has changed. First-generation node boards are identified by part number “4431-DASNF912 HB”,
whereas second-generation node boards are identified by part number “SA-TS095PCB-001”. The dongle is compatible
with either kit since its software is downloaded automatically by the PC application.
Rev. 0.2