R F - t o - U S B - R D 2
14
Rev. 0.2
5.5. Hardware Development
The RF to USB node design is a realistic reference design for a low-power wireless sensor node for a number of
reasons:
Low-power operation possible using a 32 kHz timer or keypress to wake
Low-voltage operation using a single AAA cell and on-chip dc-dc boost converter
Low-cost printed antenna
ADC measurement capability via the Si1014's on chip ADC
PCB design files for the node board (in PADS, Gerber, and PDF formats) are available from the Silicon
Laboratories website.
The RF-to-USB dongle is intended more as a fixed demonstration tool. Silicon Laboratories will gladly provide PCB
source files (in Eagle) and Gerbers, but the dongle is not intended for development work since it does not have a
convenient debugging interface.
Note also that there is a solar powered energy harvesting version of the node board available. Refer to the Energy
Harvesting Reference Design kit for more details.
5.6. RF to USB Node Board Features
Figure 21. Node Board Features
+
+
-
-
BATT
OFF
TS
3.
3V
S2
D1
(G
)
D2
(R
)
S1
1
12
4
2
5
3
6
7
8
9
10
11
13
14
15
Содержание RF-to-USB-RD2
Страница 16: ...RF to USB RD2 16 Rev 0 2 6 PCB Schematics and Layouts Figure 22 Node Schematic ...
Страница 17: ...RF to USB RD2 Rev 0 2 17 Figure 23 Dongle Schematic ...
Страница 19: ...RF to USB RD2 Rev 0 2 19 Figure 27 Node PCB Layout L4 Bottom ...
Страница 20: ...RF to USB RD2 20 Rev 0 2 Figure 28 Dongle PCB Layout L1 Top Figure 29 Dongle PCB Layout L2 ...
Страница 21: ...RF to USB RD2 Rev 0 2 21 Figure 30 Dongle PCB Layout L3 Figure 31 Dongle PCB Layout L4 Bottom ...
Страница 24: ...RF to USB RD2 24 Rev 0 2 DOCUMENT CHANGE LIST Revision 0 1 to Revision 0 2 Content completely revised ...
Страница 25: ...RF to USB RD2 Rev 0 2 25 NOTES ...
