| Tools |
| Solderless Breadboard |
MeerkatSystems |
1 |
$4.70 |
$4.70 |
| Wire Strippers |
Sparkfun |
1 |
$4.46 |
$4.76 |
| Solder Vacuum |
Sparkfun |
1 |
$3.56 |
$3.80 |
| Needle Nose Pliers |
Sparkfun |
1 |
$1.76 |
$1.88 |
| Diagonal Cutters |
Sparkfun |
1 |
$1.76 |
$1.88 |
| student Celsius thermometer |
Lab and Science |
1 |
$1.82 |
$2.42 |
| screwdriver set |
Utopia tools |
1 |
$1.20 |
$1.70 |
| Parts |
| 24 gauge fine silver wire |
Fusion Beads |
1′ |
$1.12 |
$1.12 |
| hysteresis oscillator board |
ITEADStudio, design by Karplus |
1 |
$0.46 |
$0.55 |
| instrumentation amp protoboard |
ITEADStudio, design by Karplus |
2 |
$1.80 |
$2.16 |
| 2-1/2″ x 4″ Shielded Speaker |
Parts Express |
1 |
$0.78 |
$1.28 |
| Hook & Loop 6″ Cable Ties 6-Pack |
Parts Express |
1 |
$0.59 |
$0.97 |
| resistor assortment |
Amazon |
1120 |
$13.12 |
$13.35 |
| alligator clips (repackaged) |
Amazon |
4 |
$0.56 |
$0.57 |
| EKG
electrodes (repackaged) |
Amazon |
10 |
$1.03 |
$1.05 |
| 3/16"
air-line tubing (repackaged) |
Amazon |
2′ |
$0.39 |
$0.40 |
| double-ended
male headers (repackaged) |
ITEADStudio |
20 |
$0.15 |
$0.18 |
| electrolytic
capacitors (repackaged) |
ITEADStudio |
12 |
$0.60 |
$0.72 |
| ceramic capacitors |
ITEADStudio |
250 |
$4.80 |
$5.75 |
| electret microphone CMA-4544PF-W |
DigiKey |
1 |
$0.75 |
$0.84 |
| thermistor NTCLE413E2103F520L |
DigiKey |
1 |
$0.77 |
$0.86 |
| 4-long 0.1″ screw terminal 282834-4 |
DigiKey |
5 |
$2.91 |
$3.24 |
| 4.7μF 10v ceramic capacitor FK18X5R1A475K |
DigiKey |
6 |
$0.96 |
$1.07 |
| MCP6004 quad op amp |
DigiKey |
2 |
$0.72 |
$0.80 |
| NTD5867NL-1G nFET 18A |
DigiKey |
1 |
$0.38 |
$0.42 |
| NTD2955-1G pFET 12A |
DigiKey |
1 |
$0.50 |
$0.56 |
| INA126PA instrumentation amp |
DigiKey |
2 |
$4.50 |
$5.01 |
| 74HC14N Schmitt trigger hex inverter |
DigiKey |
1 |
$0.28 |
$0.31 |
| LM2903 dual comparator |
DigiKey |
1 |
$0.27 |
$0.40 |
| 10kΩ trim pot CT94EW103 |
DigiKey |
1 |
$1.25 |
$1.39 |
| phototransistor 3mm 940nm IR NPN WP3DP3BT |
DigiKey |
1 |
$0.19 |
$0.21 |
| LED red diffuse 3mm 625nm WP710A10ID |
DigiKey |
1 |
$0.08 |
$0.09 |
| LED green clear 3mm 565nm WP710A10SGC |
DigiKey |
1 |
$0.08 |
$0.09 |
| LED IR emitter 5mm 950nm SFH 4512 |
DigiKey |
1 |
$0.20 |
$0.22 |
| Packaging |
| Ziploc 2-gallon freezer bag |
Amazon |
1 |
$0.44 |
$0.48 |
| Ziploc sandwich bags |
donated |
1 |
|
|
| 2″x3″ zip-seal bags |
donated |
2 |
|
|
| DIP rail (packaging) |
Jameco |
7″ |
$0.08 |
$0.12 |
| DIP rail plugs |
Jameco |
2 |
$0.10 |
$0.15 |
| Total price per student |
|
|
|
$65.50 |
