AFRON Robot Design Challenge BOM
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AFRON "10 Dollar" Robot Design Challenge
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Prototype Bill of Materials
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SummaryDescriptionTotal CostQtySubtotalSourceNotes
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Locomotion
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DC motor gearbox*1pcs smart Car Robot Plastic Tire Wheel + DC Gear Motor 3v 5v 6v$4.191$4.19eBay seller minishop_008Actual purchase price used on prototype
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Toy car wheels, axles2 wheels and axles salvaged from Dollar Store pullback car$1.001$1.00local Dollar StoreTotal cost of the car used here
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Rear steer wheels, bracketFingerboard wheels and truck from Tech Deck Longboard$4.001$4.00local TargetTotal cost of the mini skateboard used
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Servo bracketBrass strip, K&S Engineering, 12 X.032 X 1/2"$1.110.20$0.22http://www.benfranklin.com/item.php?id=MP-KS241&c=a&s1=Crafts,+Modeling+&+Home+Decora&s2=Miscellaneous+Craft+Supplies&s3=Metal+Strips&gclid=CL6mjNfisrICFQmpnQodG2YAMAFrom parts box; using typical online price divided by amount used
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ServoEXI S1123 9g micro servo$3.001$3.00http://www.hobbypartz.com/9gmiseexis1.htmlActual purchase price used on prototype
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Sensors
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3mm 940nm IR LEDKingbright WP710A10F3C$0.262$0.52Digi-KeyActual purchase price used on prototype
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3mm 940nm IR PhotoTransLTR-4206E$0.382$0.76Digi-KeyActual purchase price used on prototype
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3.7mm Heat shrink tubingSparkfun heat shrink kit$7.990.002631578947$0.02https://www.sparkfun.com/products/9353Based on grab bag, 95 pieces, of which I used 1/4 of 1 piece
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Main Board
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MCUATmega328P-PU (28PDIP) such as from Newark$2.241$2.24http://www.newark.com/atmel/atmega328p-pu/ic-8bit-mcu-avr-mega-20mhz-28-pdip/dp/68T2944From parts box, using price from a vendor I typically use
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Socket28-PDIP socket$0.421$0.42http://www.newark.com/te-connectivity-amp/1-390261-9/dip-socket-28pos-through-hole/dp/52K3282?in_merch=Popular%20Products&in_merch=Popular%20Products&MER=PPSO_N_C_EverywhereElse_NoneFrom parts box, using price from a vendor I typically use
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Crystal Resonator8MHz crystal resonator$2.950.2$0.59https://www.sparkfun.com/products/9993Actual purchase price used on prototype divided by amount used
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MOSFET H-BridgeFDS9934C 6.5A/-5A SO-8$0.912$1.82Digi-KeyActual purchase price used on prototype
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LEDParts box: 3mm LED, similar to Kingbright WP710A10ID$0.131$0.13http://www.digikey.com/product-detail/en/WP710A10ID/754-1606-ND/2769809From parts box, using price from a vendor I typically use
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.01uF capacitor10-pack, .01uF disc capacitor$1.000.2$0.20http://www.allelectronics.com/make-a-store/item/103D1K/0.01-UF-1000-V-DISC-CAPACITOR/1.htmlFrom parts box, using price from a vendor I typically use
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0.1uF capacitorStandard 104 bypass cap, similar to Vishay K104K15X7RF53L2$0.074$0.28http://www.newark.com/jsp/search/productdetail.jsp?SKU=67C2584&CMP=AFC-OPH&CMP=AFC-OPHFrom parts box, using price from a vendor I typically use
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100uF capacitorSalvage from free, junk DVD player$0.001$0.00salvage
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100 resistor1/8W resistor, from Radio Shack 500 pack$9.990.006$0.06Radio ShackActual purchase price used on prototype divided by amount used
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1K resistor1/8W resistor, from Radio Shack 500 pack$0.020.006$0.00Radio ShackActual purchase price used on prototype divided by amount used
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10K resistor1/8W resistor, from Radio Shack 500 pack$0.020.012$0.00Radio ShackActual purchase price used on prototype divided by amount used
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1x6 connectorMulticomp 2211S-06G$0.061$0.06http://www.newark.com/multicomp/2211s-06g/board-board-connector-header-6way/dp/08N6748?in_merch=Popular%20ProductsFrom parts box, using price from a vendor I typically use
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1x3 connectorMulticomp 2211S-03G$0.031$0.03http://www.newark.com/multicomp/2211s-03g/board-board-connector-header-3way/dp/08N6745?Ntt=2211s-03gFrom parts box, using price from a vendor I typically use
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1x2 connectorBroken off of 1x20 (Multicomp MC34739)$0.022$0.05http://www.newark.com/multicomp/2211s-02g/board-board-connector-header-2way/dp/08N6744?Ntt=2211S-02GFrom parts box, using price from a vendor I typically use
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Reset buttonSalvage from free, junk DVD player$0.001$0.00salvage
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Motor wire crimp contacts0.1" female crimp contacts for pin header$0.032$0.07http://www.newark.com/multicomp/2226tg/contact-socket-28-24awg-crimp/dp/08N6834?Ntt=2226TgActual purchase price used on prototype
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Motor wire contact housing0.1" female 1x2 housing$0.031$0.03http://www.newark.com/multicomp/2226a-02/wire-board-conn-receptacle-2pos/dp/08N6813?Ntt=2226A-02Actual purchase price used on prototype
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Blank PCBRadio-shack blank PCB #276-1499$1.051$1.05http://www.radioshack.com/product/index.jsp?productId=2102495&filterName=Type&filterValue=BreadboardsActual purchase price used on prototype divided by amount used
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ProtoboardIR sensor protoboard$2.190.5$1.10http://www.radioshack.com/product/index.jsp?productId=2104052Actual purchase price used on prototype divided by amount used
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BatteriesTenergy 1S 3.7V 500mAH LiPo$5.971$5.97http://compare.ebay.com/like/221063829319?var=lv&ltyp=AllFixedPriceItemTypes&var=sbarActual battery from my parts box; price of exact replacement, new
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Motor hookup wire100' HOOK-UP WIRE 24AWG SOLID, Alpha Wire$25.700.01$0.26http://www.digikey.com/product-detail/en/3050%2F1%20BL005/A3050L-100-ND/281570Used wire from my stash, roughly comparable to this
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Other
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Assembly adhesives1/4 of one stick out of a 12-pack of hot glue sticks$2.180.020833333333333$0.05http://www.psofficesupply.com/Products/ChenilleKraft-Hot-Glue-Gun-Glue-Stick__CKC3351.aspxFrom tool box, using price from a vendor I typically use
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TOTAL$28.10
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* price includes shipping
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Prototype
Accessories
Tools, Equipment
Mass Production
Dual v Single Motor