summaryrefslogtreecommitdiffstats
path: root/design/hardware.page
blob: 02fcbe99176e5ac3f20fc4208dfed6af0fb0ec37 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586

## Features and Components

### Core

*See [../research/cpu]() for an overview of the **many** low-cost embedded
processors which have been announced, and a justification of this component
selection.*

The Freescale i.MX6 series ARM processors are in production as of summer 2012,
hardware-specific code is being upstreamed into the Linux kernel, and extensive
public documentation will be released in November 2012. Several (but not all)
variants are "pin-compatible", allowing upgrades. Rumored prices put the 1GHz
"Dual Core Lite" processor at around $16/each for commerical-grade temperature
ranges, or $21 for extended temperature ranges. The single core chip could go
as low as $11/each in quantities of 10k.

These chips have plenty of power and storage connectivity to act as web
servers. They should have enough connectivity throughput to fufil expectations
of contemporary network routers. They have enough extra communications and
system ports (SATA, SD, USB, video, audio, etc) to be expandable and hackable.

A dedicated power management/regulator chip ("PMIC") will almost certainly be
required to provide stable voltage for the SoC. The vendor usually produces
such a chip; for budgeting purposes i've included Freescale's equivalent PMIC
for their i.MX53 line of processors.

512MB should be adequate for almost all server applications. The i.MX6 chips
support 64 bit bus widths for faster throughput, optionally through two 32 bit
channels. RAM chips should be selected to take advantage of this.

With enough RAM to cache the kernel and core daemons, micro SD flash storage
should be sufficient for both a bootloader and core operating system. Disk
storage can be expanded through a full-sized SD card slot, USB thumb drives, or
a SATA port.

On-board flash memory could be provided for a BIOS if that ends up being
desired. FRAM memory could also be used to cache the kernel, DHCP tables, or
other information to make reboots extremely fast. 

### WiFi

The miniPCIe slot allows flexibility in selecting an appropriate dual-band
802.11n card; see [../research/miniPCIe]() for a list of options and issues.

Atheros-based devices supporting the non-blob
[ath9k](http://wireless.kernel.org/en/users/Drivers/ath9k) or
[ath5k](http://wireless.kernel.org/en/users/Drivers/ath5k) drivers with access
point mode are shipped in some laptops and are frequently available used on
amazon.com for less than $15.
[thinkpenguin.com](https://www.thinkpenguin.com/gnu-linux/penguin-wireless-n-mini-pcie)
sells such a device new for $35, as does
[netgate.com](http://store.netgate.com/WLE200NX-80211nabg-miniPCIe-Card-P1763C29.aspx)
for $45. 

Antennas and cabling (for both 2.4GHz and 5GHz) are necessary and usually
aren't included with PCI cards, so the rooter will need to ship with them.

### Ethernet

The Realtek RTL8366SR gigabit switch chip is an industry standard with support
in OpenWRT. I have been unable to find a public price quote for it, but am
confident that it can be sourced in smaller quantities (1k). For prototyping it
could even be re-flowed off of a cheap commodity router.

Extra analog circuitry to boost the current going out over long (50+ meter)
ethernet cable runs may be required for reliability in extreme environments.

The first revision rooter will probably not support power-over-ethernet;
injector dongles provide similar functionality.

### Connectivity

For both initial development and for later hacking, JTAG access to at least the
SoC will be broken out.

A boot-time serial console is a very useful debugging and hacking interface,
but RS-232 is a bit clunky to implement, and requires an extra adapter for
users. As a contemporary solution, an FTDI chip will allow USB access to the
root serial console, with low-voltage UART pins also broken out to pads
internally.

### Power

12-20v DC input power will be accepted, with the explicit goal of being able to
run off 12v battery or solar power without browning out down to 10.5v or so.

rooter will probably pull between 2-5 watts when active, more depending on on
USB, SATA, PCI, and other peripherals. Idle power usage should go very low. 

TODO: a 12v power adapter is not included in the price estimate below, a decent
one probably costs about $3 in bulk.

### Extra Features

rooter will include an 2.4GHz 802.15.4 radio on-board to enable lightweight
"internet-of-things" communication with embedded devices. The 6lowpan protocol
will be supported by default, libre implementations of the ZigBee protocol
stack or other protocols could be installed by the user.

A simple avalanche break-down circuit will provide a high-quality stream of
random numbers to the main processor, to be mixed with other sources of entropy
for cryptographic purposes.

A user-programable microcontroller with both an On-The-Go USB port and
connectivity to the main processor will enable real-time programming and other
such hackery. For example, IP-over-USB for devices without an ethernet port,
interfacing to non-IP communication buses, USB mass-storage pass through,
low-bandwidth wireless radio protocol experimentation (433MHz, 900MHz, etc),
out-of-band network data monitoring, secret sharing, etc.

## Proposed BOM and Costs (August 2012)

The rough cost analysis below guesses component pricing for a production run of
1,000 units; the PCB fabrication and assembly numbers are probably more
realistic for at least 10,000 units. These are *prices* of components (what
would need to be paid on the market), resulting in the *cost* of production;
the *price* of the final device would be higher than the cost to cover risk and
additional development and logistical expenses.

For an initial release we can ship with used WiFi cards (or let people source
their own), so I will budget $15. Devices would ship with no SATA disk by default.

<TABLE FRAME=VOID CELLSPACING=0 COLS=8 RULES=NONE BORDER=0 class="gridded">
		<TR>
			<TH WIDTH=86 HEIGHT=17 ALIGN=LEFT><B><U>Subsystem</U></B></TH>
			<TH WIDTH=145 ALIGN=LEFT><B><U>What</U></B></TH>
			<TH WIDTH=86 ALIGN=LEFT><B><U>MFG</U></B></TH>
			<TH WIDTH=180 ALIGN=LEFT><B><U>MPN</U></B></TH>
			<TH WIDTH=86 ALIGN=LEFT><B><U>Qty</U></B></TH>
			<TH WIDTH=86 ALIGN=LEFT ><B><U>Cost @1k</U></B></TH>
			<TH WIDTH=86 ALIGN=LEFT ><B><U>Total</U></B></TH>
			<TH WIDTH=168 ALIGN=LEFT><B><U>Notes</U></B></TH>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B>Core</B></TD>
			<TD ALIGN=LEFT>ARM SoC</TD>
			<TD ALIGN=LEFT>Freescale</TD>
			<TD ALIGN=LEFT>i.MX6 dual lite</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$22.00</FONT></TD>
			<TD ALIGN=RIGHT  >$22.00</TD>
			<TD ALIGN=LEFT>“gossip”</TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>512MB RAM</TD>
			<TD ALIGN=LEFT>Hynix</TD>
			<TD ALIGN=LEFT>H5TQ4G63MFR</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$15.00</TD>
			<TD ALIGN=RIGHT  >$15.00</TD>
			<TD ALIGN=LEFT>Wrong bitwidth, cost reference only</TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Microcontroller</TD>
			<TD ALIGN=LEFT>Stmicro</TD>
			<TD ALIGN=LEFT>STM32F100R4H6B</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$1.40</TD>
			<TD ALIGN=RIGHT  >$1.40</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Entropy circuit</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$1.50</TD>
			<TD ALIGN=RIGHT  >$1.50</TD>
			<TD ALIGN=LEFT>Associated project...</TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B>Wireless</B></TD>
			<TD ALIGN=LEFT>miniPCIe WiFi card</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$10.00</TD>
			<TD ALIGN=RIGHT  >$10.00</TD>
			<TD ALIGN=LEFT>Budgeting price of used cards</TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>802.15.4 TX/RX</TD>
			<TD ALIGN=LEFT>TI</TD>
			<TD ALIGN=LEFT>CC2520</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$2.50</TD>
			<TD ALIGN=RIGHT  >$2.50</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>miniPCIe slot</TD>
			<TD ALIGN=LEFT>Tyco</TD>
			<TD ALIGN=LEFT>2041119-1</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$0.36</TD>
			<TD ALIGN=RIGHT  >$0.36</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>WiFi cable</TD>
			<TD ALIGN=LEFT>Microchip</TD>
			<TD ALIGN=LEFT>RN-UFL-SMA6</TD>
			<TD ALIGN=RIGHT >2</TD>
			<TD ALIGN=RIGHT >$2.20</TD>
			<TD ALIGN=RIGHT >$4.40</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>WiFi radio antenna</TD>
			<TD ALIGN=LEFT>Pulse</TD>
			<TD ALIGN=LEFT>W1902</TD>
			<TD ALIGN=RIGHT >2</TD>
			<TD ALIGN=RIGHT >$4.00</TD>
			<TD ALIGN=RIGHT >$8.00</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B>Ethernet</B></TD>
			<TD ALIGN=LEFT>Switch chip</TD>
			<TD ALIGN=LEFT>Realtek</TD>
			<TD ALIGN=LEFT>RTL8366SR-GR</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$10.00</FONT></TD>
			<TD ALIGN=RIGHT  >$10.00</TD>
			<TD ALIGN=LEFT>Guess, can't find quote...</TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>5x Ethernet port strip</TD>
			<TD ALIGN=LEFT>Tyco</TD>
			<TD ALIGN=LEFT>5557563-1</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$4.25</FONT></TD>
			<TD ALIGN=RIGHT  >$4.25</TD>
			<TD ALIGN=LEFT>Includes magnetics</TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT ><BR></FONT></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B>Storage</B></TD>
			<TD ALIGN=LEFT>SD Slot</TD>
			<TD ALIGN=LEFT>ALPS</TD>
			<TD ALIGN=LEFT>SCHA5B0200</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$1.00</TD>
			<TD ALIGN=RIGHT  >$1.00</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>8GB uSD card</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$6.00</TD>
			<TD ALIGN=RIGHT  >$6.00</TD>
			<TD ALIGN=LEFT>Budgeting price</TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>microSD slot</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT>114-00841-68</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$0.70</TD>
			<TD ALIGN=RIGHT  >$0.70</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>SATA conn</TD>
			<TD ALIGN=LEFT>Molex</TD>
			<TD ALIGN=RIGHT  >678007001</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$0.40</TD>
			<TD ALIGN=RIGHT  >$0.40</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>SATA power conn</TD>
			<TD ALIGN=LEFT>Molex</TD>
			<TD ALIGN=RIGHT  >679260011</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$0.50</TD>
			<TD ALIGN=RIGHT  >$0.50</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B>USB</B></TD>
			<TD ALIGN=LEFT>Dual USB Host conn.</TD>
			<TD ALIGN=LEFT>Assmann</TD>
			<TD ALIGN=LEFT>87520-0010BLF  </TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$0.40</TD>
			<TD ALIGN=RIGHT  >$0.40</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>USB Mini</TD>
			<TD ALIGN=LEFT>FCI</TD>
			<TD ALIGN=LEFT>10104110-0001LF</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$0.35</TD>
			<TD ALIGN=RIGHT  >$0.35</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Voltage Protect</TD>
			<TD ALIGN=LEFT>On semi</TD>
			<TD ALIGN=LEFT>NCP349MNAETBG</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$0.36</TD>
			<TD ALIGN=RIGHT  >$0.36</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>USB-to-serial</TD>
			<TD ALIGN=LEFT>FTDI</TD>
			<TD ALIGN=LEFT>FT232HQ</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$2.25</TD>
			<TD ALIGN=RIGHT  >$2.25</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>USB 2.0 hub</TD>
			<TD ALIGN=LEFT>SMC</TD>
			<TD ALIGN=LEFT>USB2514B</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$2.10</TD>
			<TD ALIGN=RIGHT  >$2.10</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B>Power</B></TD>
			<TD ALIGN=LEFT>Inductor</TD>
			<TD ALIGN=LEFT>TDK</TD>
			<TD ALIGN=LEFT>VLCF5020T-2R2N2R6-3</TD>
			<TD ALIGN=RIGHT  >3</TD>
			<TD ALIGN=RIGHT  >$0.90</TD>
			<TD ALIGN=RIGHT  >$2.70</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Voltage Protect</TD>
			<TD ALIGN=LEFT>On semi</TD>
			<TD ALIGN=LEFT>NCP349MNAETBG</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$1.00</TD>
			<TD ALIGN=RIGHT  >$1.00</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>ARM SoC Pwr</TD>
			<TD ALIGN=LEFT>Freescale</TD>
			<TD ALIGN=LEFT>MC34708VKR2</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$4.25</TD>
			<TD ALIGN=RIGHT  >$4.25</TD>
			<TD ALIGN=LEFT> i.mx53 PMIC for reference</TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Regulator</TD>
			<TD ALIGN=LEFT>TI</TD>
			<TD ALIGN=LEFT>TPS73701DRBR</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$0.95</TD>
			<TD ALIGN=RIGHT  >$0.95</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B>Other Comp</B></TD>
			<TD ALIGN=LEFT>Passives</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=RIGHT  >100</TD>
			<TD ALIGN=RIGHT  >$0.01</TD>
			<TD ALIGN=RIGHT  >$0.50</TD>
			<TD ALIGN=LEFT>Most of these are just fudged numbers</TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>LEDs</TD>
			<TD ALIGN=LEFT>Dialight</TD>
			<TD ALIGN=LEFT>598-8170-107F</TD>
			<TD ALIGN=RIGHT  >4</TD>
			<TD ALIGN=RIGHT  >$0.05</TD>
			<TD ALIGN=RIGHT  >$0.20</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Diode</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=RIGHT  >4</TD>
			<TD ALIGN=RIGHT  >$0.10</TD>
			<TD ALIGN=RIGHT  >$0.40</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Power Jack</TD>
			<TD ALIGN=LEFT>CUI</TD>
			<TD ALIGN=LEFT>PJ-002A</TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$0.30</TD>
			<TD ALIGN=RIGHT  >$0.30</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Buffer</TD>
			<TD ALIGN=LEFT>TI</TD>
			<TD ALIGN=LEFT>SN74LVC2G07DCKR</TD>
			<TD ALIGN=RIGHT  >2</TD>
			<TD ALIGN=RIGHT  >$0.12</TD>
			<TD ALIGN=RIGHT  >$0.24</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Transistors</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=RIGHT  >3</TD>
			<TD ALIGN=RIGHT  >$0.20</TD>
			<TD ALIGN=RIGHT  >$0.60</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Button</TD>
			<TD ALIGN=LEFT>Omron</TD>
			<TD ALIGN=LEFT>B3U-1100P</TD>
			<TD ALIGN=RIGHT  >4</TD>
			<TD ALIGN=RIGHT  >$0.55</TD>
			<TD ALIGN=RIGHT  >$2.20</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Crystal</TD>
			<TD ALIGN=LEFT>Epson</TD>
			<TD ALIGN=LEFT>MC-30632.7680k-A</TD>
			<TD ALIGN=RIGHT  >4</TD>
			<TD ALIGN=RIGHT  >$0.30</TD>
			<TD ALIGN=RIGHT  >$1.20</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Fudge Electronics</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$5.00</TD>
			<TD ALIGN=RIGHT  >$5.00</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B>Production</B></TD>
			<TD ALIGN=LEFT>6 Layer PCB</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$8.00</TD>
			<TD ALIGN=RIGHT  >$8.00</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT>Assembly</TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=RIGHT  >1</TD>
			<TD ALIGN=RIGHT  >$8.00</TD>
			<TD ALIGN=RIGHT  >$8.00</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B><BR></B></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
		<TR>
			<TD HEIGHT=17 ALIGN=LEFT><B>TOTAL</B></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT><BR></TD>
			<TD ALIGN=LEFT ><BR></TD>
			<TD ALIGN=RIGHT  >$129.01</TD>
			<TD ALIGN=LEFT><BR></TD>
		</TR>
</TABLE>