Sunday, October 19, 2008

Parts List for the Intrepid

Before I begin, I want to acknowledge and thank Tim Hirzl who initiated the project:

Arduino and Silvia: Two Italians, One Tangled Affair

Tim's efforts, and inspiration were the spark I needed to take my Silvia along this road. He has been of invaluable help to me in this project, and well deserving of the public "thank you". Along the way, Karl Gruenewald, aka The WABE, was another who followed in Tim's footsteps and was tremendous help to me as well.

This is my first post about my progress on this project. Although I have almost completed the project at this point, I have resisted posting up until now, because I really wanted to wait until Silvia and Arduino were making beautiful espresso together before talking about my experiences. However, due to interest at CoffeeGeek's forum on espresso machine modifications and restorations (New Silvia Mods) I have decided that, at least at this time, I can post the list of parts that I used for this project and suppliers.

So.... for those interested what follows is a complete list of the parts used to date in my modification of Rancillio's Silvia. One last note... I did not include any mention of a project box, or enclosure for the electronic components. Tim choose an very nice installation internal to Silvia as shown on his blog. I will use an external installation for Arduino, patterned after the great work shown at A Tail About Silvia.

Also... a great site to check out for more references is the Arduino wiki CoffeeTronics

So here it is..... enjoy!

Silvia and Arduino

Parts list for the Intrepid

SPARKFUN (All parts except 8, 9, & 10 are optional - link)

1. 2 x Polarized Connectors - Header (2-Pin) (SKU#: PRT-08233)

2. 2 x Polarized Connectors - Housing (2-Pin) (SKU#: PRT-08095)

3. 2 x Polarized Connectors - Housing (4-Pin) (SKU#: PRT-08097)

4. 2 x Polarized Connectors - Header (4-Pin) (SKU#: PRT-08231)

5. 1 x Polarized Connectors - Housing (3-Pin) (SKU#: PRT-08096)

6. 1 x Polarized Connectors - Header (3-Pin) (SKU#: PRT-08232)

7. 1 x Polarized Connectors - Crimp Pins (SKU#: PRT-08100) $1.95

8. 1 x Serial Enabled 16x2 LCD - White on Black (SKU#: LCD-00813)

9. 1 x Real Time Clock Module (SKU#: BOB-00099) $19.95

10. 1 x Wall Adapter Power Supply - 9VDC 650mA (SKU#: TOL-00298)

11. 1 x Mini Button Pad Set - Black (SKU#: COM-08997) $4.95
Note: the center button is a 4-way directional button (up-down-right-left)

12. 1 x Mini Button Pad PCB (SKU#: COM-08963) $1.95


K Type Washer Thermocouple
Model: TC-K3W
$9.50 (M3 or #6 screw, 3’ long leads)

(Note: One could use the T0-46 packaged, LM34AH-ND from National Semiconductor, an IC temperature sensor (link) instead of Auberin’s thermocouple and Analog Device’s thermocouple IC amplifier: AD595CQ)


Precision IC Temperature Sensor - Fahrenheit
(see note above)


1. Arctic Silver® Ceramique™ Thermal Compound
Model: A2350 | Catalog #: 28-1098

2. Desoldering Braid (also used for water sensing electrode probe)
Model: 64-2090 | Catalog #: 64-2090

3. Dual General-Purpose IC PC Board (used with QT114 / 113)
Model: 276-159 | Catalog #: 276-159

4. 2-Position PC Board Terminals (used with QT114 / 113)
Model: 276-1388 | Catalog #: 276-1388

5. 0.1µF 50V Hi-Q Ceramic Disc Capacitor Pk/2 (used with QT114 / 113)
Model: 272-135 | Catalog #: 272-0135
$1.49 *

6. 0.047µF 500V 20% Hi-Q Ceramic Disc Capacitor (used with QT114 / 113)
Model: 272-126 | Catalog #: 272-0134
$1.49 *

*one of each used - see photo on future blog!

NEWARK (Parts other than 1, 2,3, & 4 are optional, as needed - link)

1. 05F7093 Each/ $18.68
Manufacturer Part No: AD595CQ Analog Devices
Description: Temperature Sensor IC; IC Function:Temperature Sensor IC;

2. 92K8429 Each/ $5.06
Manufacturer Part Number : QT114-DG
Description: QPROX SENSOR, DIP8, 114

note: 92K8427 Each/ $4.16
Manufacturer Part Number : QT113-DG
Description: QPROX SENSOR, DIP8, 113
This IC is easier to work with.

3. 52K3276 Each/ $0.14
Manufacturer Part No: 1-390261-2
Description: DIP Socket; No. of Contacts:8; Row Spacing:0.3"

4. 52K3277 Each/1 1 $0.158 $0.16
Manufacturer Part No: 1-390261-3
Description: DIP Socket; No. of Contacts:14; Pitch Spacing:0.1"

5. 58K5034 Tape and Reel C/1 1 $0.122 $0.12
Manufacturer Part No: MCCFR0W4J0270A50
Description: Carbon Film Resistor; Series:MCCFR; Resistance:27ohm

6. 62J1902 Each/ $0.80
Manufacturer Part No: 3362P-1-502LF
Description: Trimmer; Series:3362; Track Resistance:5kohm

7. 15M2094 Tape and Reel C/ $0.66
Manufacturer Part No: 23BR5KLFTR13
Description: Trimmer; Series:23A Series; Track Resistance:5kohm

8. 01H9629 Each/ $0.23
Manufacturer Part No: AND114-R
Description: LED Lamp; Bulb Size:T-1 3/4; LED Color:Red; Luminous

9. 71C4123 Each/ $0.89
Manufacturer Part Number : 1729128
Description: TERMINAL BLOCK, PCB, 5.08MM, 2WAY; Connector type:Terminal Block,

10. 58K5042 Tape and Reel C/ $0.12
Manufacturer Part Number : MCCFR0W4J0331A50
Description: Carbon Film Resistor; Series:MCCFR; Resistance:330ohm
Tolerance:+/- 5%;


1 x Arduino Breakout Shield v1.2 Kit $20.00 (excellent)
1 x Thermocouple Sensor v1.0 Raw PCB $1.00 (excellent)
This is used with the AD495CQ


Arduino Diecimila arduino-diecimila 1x 33.00

16x2 LCD Module While 16x2-lcd-module-while-characters-blue-backli162 1x 9.99
Characters Blue Backlight
(I ended up using the LCD from SparkFun)


Micron Tech
DC to AC SSR Solid State Relay 25A
Sale price: $8.00
Quantity: 3
Subtotal: US $24.00
S&H: US $13.00


New Nunchuck Controller (Numchuck) For Nintendo Wii
Sale price: $5.50
S&H: $6.50


OPTO 22 - IAC5 – AC INPUT MODULES (5) (Optoisolators)
Sale price: $1.45
S&H: $4.80


(PC Board for optoisolators)
Sale price: $10.00
S&H: $13.88


GB – Gardner Bender
Various sizes of Polyolefin Heat Shrink Tubing
3/32" 24 AWG HST-093

1/8" 22-18 AWG HST-125
3/16” 20-12 AWG HST-187

3/8” 12-4 AWG HST-375

Various Male and Female Quick Disconnects. These were used to make the installation 100% reversible. None of Silvia’s original wires were cut. Some from HD, and some from Auto parts stores

FunGizmos.Com (Store)

1 x Wiichuck Adapter (I2C) = $4.00
Free shipping!

Reference: TodBot Blog


Various gauges (AWG) of wire are needed for this project. For internal wiring (inside Silvia) I used temperature resistant 16 AWG Primary wire from an auto parts store. All of the ic wiring to Arduino was 22 AWG project wire from RadioShack. Lastly, I used 12 AWG wire from the Solid State Relay to Silvia’s heating element.

Also... the prices shown are what I paid, and it goes without saying that at this point they are only an indication as they are likely to change. Clearly too, the prices paid for those items I was able to find on eBay were just those paid for that particular auction. Any of the items purchased on eBay (and I was lucky to find what I needed when I needed it) can all be purchased retail if need be.

Good luck! ...........More to follow as the project is completed!

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