$83.60 = 40@$2.09 P5587 - Hamamatsu P5587 Photo Reflector
 [Acroname:R65-P5587; $2.20/1 $2.09/10]
    2: U1-2 P5587.Long - Hamamatsu Photoreflector  (twingearsensorright.ptl:5)
    2: U1-2 P5587.Long - Hamamatsu P5587 Photo Reflector  (twingearsensorleft.ptl:5)
$2.40 = 40@$0.06 Resistor470 - 470 Ohm 1/8 Watt Resistor
 [Digikey:470EBK-ND; $0.06/5 $0.03/200 $0.02/1000]
    2: R1-2 Resistor470.Short - 470 Ohm 1/8 Watt Resistor  (twingearsensorright.ptl:4)
    2: R1-2 Resistor470.Short - 470 Ohm 1/8 Watt Resistor  (twingearsensorleft.ptl:4)
$?.?? 74HCT151 - 8 Input Multiplexer
 [Digikey:CD74HCT151E;B]
    1: U2 74HCT151 - 1-of-8 Selector  (sonar8.ptl:7)
    1: U2 74HCT151 - 1-of-8 Selector  (rcinput8.ptl:7)
$43.25 = 25@$1.32 + 5@$2.05 PIC16F630 - Microchip PIC16F630
 [Digikey:PIC16F630-I/P-ND;B $2.05/1 $1.32/25 $1.25/100]
    1: U1 PIC16F630.LCD32 - Microchip PIC16F630  (lcd32.ptl:10)
    1: U1 PIC16F630.Sonar8 - Microchip PIC16F30  (sonar8.ptl:6)
    1: U1 PIC16F630.Sonar8 - Microchip PIC16F30  (rcinput8.ptl:6)
$23.80 = 10@$2.38 PIC16F676 - Microchip PIC16F630
 [Digikey:PIC16F676-I/P-ND;B $2.38/1 $1.52/25 $1.44/100]
    1: U1 PIC16F676.IRDistance4 - Microchip PIC16C676  (irdistance4.ptl:12)
$2.50 = 10@$0.25 ResistorTrimPot10K - Trim Potentiometer
 [Digikey:D4AA14-ND;F $0.35/1 $0.25/10 $0.19/100 $0.14/500 $0.10/1000]
    1: R1 ResistorTrimPot10K - 10K Ohm Trim Pot  (lcd32.ptl:8)
$1.40 = 20@$0.07 Capacitor10pF - 10pF Ceramic Capacitor
 [Jameco:15333;Capacitors $0.07/10 $0.05/100 $0.02/1000]
    1: C1 Capacitor10pF - 10 pF Ceramic Capacitor  (lcd32.ptl:3)
    1: C3 Capacitor10pF - 10 pF Ceramic Capacitor  (irdistance4.ptl:5)
$3.20 = 40@$0.08 Capacitor100nF - 100nF (.1 uF) 50V Monolithic Capacitor
 [Jameco:25524;Capacitors $0.08/10 $0.07/100 $0.05/1000 $0.04/5000]
    1: C5 Capacitor100nF.Small - .1uF Capacitor  (sonarsr.ptl:5)
    3: C1-3 Capacitor100nF.Small - .1uF Capacitor  (sonarsr.ptl:3)
$1.80 = 10@$0.18 Capacitor470nF - .47uF 35V Tantalum Capacitor
 [Jameco:33531;Capacitors $0.18/10 $0.14/100 $0.13/1000]
    1: C1 Capacitor470nF - .47 uF Tantalum Capacitor  (irdistance4.ptl:3)
$13.50 = 50@$0.27 Capacitor1uF - 1uF Tantalum Capacitor
 [Jameco:33662;Capacitors $0.29/1 $0.27/10 $0.23/100 $0.20/1000]
    4: C6-9 Capacitor1uF - 1uF Tantalum Capacitor  (sonarsr.ptl:6)
    1: C4 Capacitor1uF - .1uF Capacitor  (sonarsr.ptl:4)
$5.30 = 10@$0.53 Capacitor22uF - 22uF 16V Tantalum Capacitor
 [Jameco:94094;Capacitors $0.62/1 $0.53/10 $0.42/100 $0.41/1000]
    1: C2 Capacitor22uF - 22 uF Tantalum Capacitor  (irdistance4.ptl:4)
$7.10 = 10@$0.71 TerminalStrip2 - 2 Junction Terminal Strip
 [Jameco:189675;Connectors $0.79/1 $0.71/10 $0.64/100 $0.58/1000]
    1: N7 TerminalStrip2.Power - 2 Junction Terminal Strip  (irdistance4.ptl:9)
$?.?? 74HCT138 - 1-of-8 Decoder/Demultiplexer
 [Jameco:44927;DigitalIC]
    1: U3 74HCT138 - 3-to-8 Decoder  (sonar8.ptl:8)
$?.?? 1N4148 - Small Switching Diode
 [Jameco:36038;Diodes]
    1: D2 1N4148.Vertical - Silicon Diode  (sonarsr.ptl:8)
$22.49 = 50@$0.44 + 1@$0.49 Header1x8 - 1x8 Female Header
 [Jameco:160881;Headers $0.49/1 $0.44/10 $0.40/100 $0.36/1000]
    1: N1 <16/40> Header1x16.LCD32Holder - 1x16 Male Header  (lcd32holder.ptl:3)
    1: N2 <3/40> Header1x3.IRDistanceHolder - 1x3 Male Header  (irdistanceholder.ptl:4)
    1: N2 <3/40> Header1x3.IRDistanceHolder - 1x3 Male Header  (irdistanceholder.ptl:4)
    9: N3-11 <3/40> Header1x3.ServoSense - 1x3 Male Header  (rcinput8.ptl:5)
    1: N4 <4/40> Header1x4.LCD32 - 1x4 Male Header  (lcd32.ptl:7)
    1: N3 <4/40> Header1x4.LCD32 - 1x4 Male Header  (lcd32.ptl:6)
    1: N4 <4/40> Header1x4.LCD32Holder - 1x4 Male Header  (lcd32holder.ptl:6)
    1: N3 <4/40> Header1x4.LCD32Holder - 1x4 Male Header  (lcd32holder.ptl:5)
    1: N1 <4/40> Header1x4.TwinGearSensor -  (twingearsensorright.ptl:3)
    1: N1 <4/40> Header1x4.TwinGearSensor - 1x4 Male Header  (twingearsensorleft.ptl:3)
    1: N2 <5/40> Header1x5.Debug - 1x5 Male Header  (irdistance4.ptl:7)
    1: N2 <5/40> Header1x5.Debug - 1x5 Male Header  (sonar8.ptl:4)
    1: N2 <5/40> Header1x5.Debug - 1x5 Male Header  (rcinput8.ptl:4)
    4: N3-6 <5/40> Header1x5.IRDistance4 - 1x5 Male Header  (irdistance4.ptl:8)
    1: N1 <5/40> Header1x5.RBSlave - 1x5 Male Header  (sonarsr.ptl:17)
    1: N1 <5/40> Header1x5.Slave - 1x5 Male Header  (irdistanceholder.ptl:3)
    1: N1 <5/40> Header1x5.Slave - 1x5 Male Header  (irdistanceholder.ptl:3)
    1: N1 <5/40> Header1x5.Slave - 1x5 Male Header  (lcd32.ptl:4)
    1: N1 <5/40> Header1x5.Slave - 1x5 Male Header  (irdistance4.ptl:6)
    1: N1 <5/40> Header1x5.Slave - 1x5 Male Header  (sonar8.ptl:3)
    1: N1 <5/40> Header1x5.Slave - 1x5 Male Header  (rcinput8.ptl:3)
    9: N3-11 <5/40> Header1x5.SonarMaster - 1x5 Male Header  (sonar8.ptl:5)
    1: N2 <8/40> Header1x8.LCD32 - 1x8 Male Header  (lcd32.ptl:5)
    1: N2 <8/40> Header1x8.LCD32Holder - 1x8 Male Header  (lcd32holder.ptl:4)
$10.50 = 10@$1.05 LM2940CG-5 - 5 Volt Low Dropout Voltage Reg.
 [Jameco:107182;LinearIC $1.39/1 $1.05/10 $0.77/100]
    1: VR1 LM2940CG-5 - 5 Volt Low Dropout Voltage Regulator  (irdistance4.ptl:13)
$?.?? LM1458 - Dual Op Amp
 [Jameco:23131;LinearIC]
    1: U3 LM1458 - Dual Op Amp  (sonarsr.ptl:20)
$?.?? LM311 - Comparator
 [Jameco:23528;LinearIC]
    1: U2 LM311 - Voltage Comparator  (sonarsr.ptl:19)
$?.?? LM336-2 - 2.5 Volt Pos. Voltage Ref.
 [Jameco:23771;LinearIC]
    1: D1 LM336-2.5.TO92 - 2.5 Volt Precision Voltage Reference  (sonarsr.ptl:7)
$18.50 = 10@$1.85 MAX232CPE - Maxim RS232 Level Shifter
 [Jameco:24811;LinearIC $2.19/1 $1.85/10 $1.45/100 $1.29/1000]
    1: U1 MAX232CPE - RS-232 Driver  (sonarsr.ptl:18)
$1.00 = 50(+50)=100@$0.01 Resistor10K - 10K Ohm 1/4 Watt resistor
 [Jameco:29911;Resistors $0.01/100]
    1: R8 Resistor10K.Vertical - 10K Ohm 1/4 Watt Resistor  (sonarsr.ptl:16)
    1: R6 Resistor10K.Vertical - 10K Ohm 1/4 Watt Resistor  (sonarsr.ptl:14)
    1: R5 Resistor10K.Vertical - 10K Ohm 1/4 Watt Resistor  (sonarsr.ptl:13)
    1: R3 Resistor10K.Vertical - 10K Ohm 1/4 Watt Resistor  (sonarsr.ptl:11)
    1: R1 Resistor10K.Vertical - 10K Ohm 1/4 Watt Resistor  (sonarsr.ptl:9)
$?.?? Resistor100K - 100K Ohm 1/4 Watt resistor
 [Jameco:29997;Resistors]
    1: R4 Resistor100K.Vertical - 100K Ohm 1/4 Watt Resistor  (sonarsr.ptl:12)
    1: R2 Resistor100K.Vertical - 100K Ohm 1/4 Watt Resistor  (sonarsr.ptl:10)
$1.00 = 10(+90)=100@$0.01 Resistor2K2 - 2.2K Ohm 1/4 Watt resistor
 [Jameco:30314;Resistors $0.01/100]
    1: R7 Resistor2K2.Vertical - 2.2K Ohm 1/4 Watt Resistor  (sonarsr.ptl:15)
$1.00 = 40(+60)=100@$0.01 Resistor220 - 220 Ohm 1/4 Watt resistor
 [Jameco:30470;Resistors $0.01/100]
    4: R1-4 Resistor220 - 220 Ohm 1/4 Watt Resistor  (irdistance4.ptl:11)
$125.80 = 20@$6.29 40TR16F - Ultrasonic Transducer
 [Jameco:136653;Sensors $6.95/1 $6.29/10 $5.65/100]
    2: Y1-2 40TR16F - Ultrasonic Sensor  (sonarsr.ptl:21)
$9.80 = 20@$0.49 SwitchSmallDPDT -
 [Jameco:161816;Switches $0.59/1 $0.49/10 $0.39/100 $0.29/250]
    2: SW1-2 SwitchSmallDPDT - Small DPDT Switch  (lcd32.ptl:9)
$?.?? PN2907 - Small NPN Silicon Transistor
 [Jameco:28644;Transistors]
    4: Q1-4 PN2907.CBE - PNP Silicon Transistor  (irdistance4.ptl:10)
 $377.94 Total