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Chapter 15, How to Build an Internet Coffeemaker
Exhibit A: Bill of Materials
Item Quantity Notes
Web server board 1 SitePlayer development kit available from http://www.siteplayer.com
1uF capacitor 2 C2, C1; DigiKey Part #P11332CT-ND1uF
0.15uF capacitor 1 C3; DigiKey Part #399-1424-ND
Connector 1 J1; 0.100” spaced pins, DigiKey Part #929710-10-36-ND
Connector 2 J3, J2; 0.100” spaced pins, DigiKey Part #929710-10-36-ND
Connector 1 J4; 0.100” spaced pins, DigiKey Part #929710-10-36-ND
NPN, 2N2222 Transistor 1 Q1; DigiKey Part #2N5088-ND
100K Ohm, 5% tolerance
resistor
1 R1; DigiKey Part #100KQBK-ND
1K Ohm, 5% tolerance
resistor
2 R4, R2; DigiKey Part #1.0KQBK-ND
75 Ohm, 5% tolerance
resistor
1 R3; DigiKey Part #75QBK-ND
A/D converter 1 U1; Linear Technology, LTC1098CN8
1” x 1” blank PCB 1 Radio Shack
Temperature sensor 1 U2; National Semiconductor LM34
Shielded cable 3’ Any 4-conductor shielded cable or DigiKey Part #C1352-100-ND
Plastic tubing 1’ Hardware store
Silicone sealant 1 tube Hardware store
Tie wraps 5 Hardware store
Plastic enclosure 1 Radio Shack
22-gauge stranded wire 1’ Radio Shack
Exhibit A
ch15_coffee.indd 299
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