From Opensprints
Welcome to the OpenSprints Parts List. In order to save on shipping costs we have tried to consolidate items to SparkFun and Digikey however several of the items are available cheaper from other distributors such as Mouser.
[edit] OpenSprints Printed Circuit Board (PCB) Kit
[edit] Unassembled OpenSprints Kit
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 Unassembled Opensprints Kit | Everything you need | Available while supplies last on opensprints.com
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[edit] Pre-assembled and Tested OpenSprints Kit
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 Pre-assembled and Tested OpenSprints Kit | Ready to go | Available while supplies last on opensprints.com
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If you already have some of these tools great! If you are just getting started in the soldering world, these are solid recommendations. While there is no substitute for experience, nicer professional tools only make it easier!
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| | 1 | Weller WES51 Analog Solder Station 50W | Cooper Industries | WES51 | digikey.com | WES51-ND
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| | 1 | Desoldering Tool Pump with Standard Tip (Solder Sucker) | Paladin Tools | 1700 | digikey.com | PAL1700-ND
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| | 1 | Solder RA 60/40 21AWG 1LB | Kester Solder | 24-6040-0027 | digikey.com | KE1106-ND
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| | 1 | Magnifier Double Clamp w/Stand | Aven Tools | 26000 | digikey.com | 243-1018-ND
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| | 1 | Tool Side Cutter Flush ESD | Wiha | 32708 | digikey.com | 431-1057-ND
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| | 1 | Arduino USB microcontroller board | tinker.it | Arduino Diecimila, Duemilanove, or compatible alternatives like Freeduino USB kit, Freeduino SB and seeeduino | sparkfun.com | DEV-00666
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| | 1 | plastic project enclosure. (5.1" X 5.3" X 1.75") | SERPAC | A-31 GRAY | digikey.com | SRA31G-ND
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| | 4 | *** These are provided with any PCB order from the OpenSprints folks. *** For mounting interface board to project enclosure. (though a flat head screw would be better, here is a screw that would work from Digi-Key: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=H703-ND ) | | 18-8 SS Flat Head Phillips Machine Screw 4-40 Thread, 1/4" Length | mcmaster.com | 91771A106
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| | 6 | *** These are provided with any PCB order from the OpenSprints folks. *** For mounting arduino board to standoffs. | | 18-8 SS Flat Head Phillips Machine Screw 4-40 Thread, 3/16" Length | mcmaster.com | 91772A105
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| | 4 Note: More of these jacks are required for each roller sensor (see below) | RJ45 modular Ethernet solderable jack. Low profile. | Tyco | 5555164-1 | digikey.com | A31442-ND
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| | 1 | male breakaway headers 40 pos | | | sparkfun.com | PRT-00116
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| | 1 | 5mm blue or white LED. Tick indicator (feel free to use any color) | TT Electronics/Optek Technology | OVLFB3C7 | digikey.com | 365-1180-ND
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| | 1 | current-limiting resistors for the LEDs. For blue, green, and white LEDs, a 100 ohm resistor is recommended. Power rating can be as low as 1/8 watt. | Yageo | CFR-25JB-100R | digikey.com | 100QBK-ND
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| | 3 | Mounting Hardware 1/4 HEX 7/16" LNGTH ALUM 440 THREAD | Fascomp | FC2103-440-A | mouser.com | 728-FC2103-440-A
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Each bike requires a separate board. Therefore if you have 4 rollers, multiply the below quantities by 4 and backups are nice.
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| | 1 | Transparent plastic project enclosure. 2.26" X 1.61" X .75" | SERPAC | C-6 TR BL | digikey.com | SCR6TL-ND
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| | 1 | SENSOR SS HALL EFFECT UNIPOLAR. They activate at 53 Gauss and de-activate at 20 Gauss. Note: Take care when handling Hall sensors as they are sensitive to static electricity and can easily be damaged | Honeywell Sensing and Control | SS441A | digikey.com | 480-2001-ND
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| | 1 per bike (or optionally 2 if other peripherals are utilized) | RJ45 modular jack. Low profile. | Tyco | 5555164-1 | digikey.com | A31442-ND
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| | 1 | 5mm red LED. Power on and Stop indicator. Note: LED solderable legs are polarity specific (see detailed notes on installation) | | | |
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| | 1 | 5mm green LED. Power on and Go indicator. Note: LED solderable legs are polarity specific (see detailed notes on installation) | | | |
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| | 1 | 5mm blue or white LED. Tick indicator (feel free to use any color) | TT Electronics/Optek Technology | OVLFB3C7 | digikey.com | 365-1180-ND
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| | 1 | 0.1 uF bypass capacitor | AVX Corporation | SR205E104MAR | digikey.com | 478-3192-ND
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| | 1 | current-limiting resistors for the LEDs. For red, orange and yellow LEDs, a 220 or 330 ohm resistor is recommended. Power rating can be as low as 1/8 watt. Q: What happens if you use the wrong one? A: It diminishes the life of the LED by ~10%. | Yageo | CFR-25JB-220R | digikey.com | 220QBK-ND
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| | 2 | For blue, green, and white LEDs, a 100 ohm resistor is recommended. Power rating can be as low as 1/8 watt. Q: What happens if you use the wrong one? A: It diminishes the life of the LED by ~10%. | Yageo | CFR-25JB-100R | digikey.com | 100QBK-ND
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| | 1 | Samarium-Cobalt or Neodymium-Iron-Boron magnet, collectively known as the Rare Earths. Countersunk / beveled / cupped rare earth ring magnets can be held in with a screw. NOTE: The label side (beveled) of the hall effect sensor is triggered by the magnetic south pole. | | See this forum post or this article on Magnets. | N/A | N/A
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