Gadget Freak Case 165: Vending Machine Delivers Every Time

DN Staff

May 25, 2010

5 Min Read
Gadget Freak Case 165: Vending Machine Delivers Every Time

Reach intoyour pocket for your last 75 cents, insert the coins into a vending machine andpunch B-8. You watch eagerly as a candy bar drops and... catches on part of themachine never making it to the chute. Ryan Yourishin, William Lindenthal,Nathan Zeleski and Justin Denard have designed a vending machine that delivers.So when your friends want to come over to watch the "big game," tellthem to bring exact change.

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Gadget Freak Case 165 Vending Machine Delivers Every Time

Gadget Freak Case 165 Vending Machine Delivers Every Time A



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Part Description

Allied Part #

2

PIC16F88 Microcontroller

383-0496

1

16x2 LCD Display

355-0012

2

SN754410NE H-Bridge

735-1803

2

SN7404N Hex Inverter

735-2014

1

VT90N1, Photo Cell

980-0010

1

LM317K Voltage Regulator

248-9975

4

330I(C) Resistor, 1/4W

296-4764

9

1kI(C) Resistor, 1/4W

296-4741

1

3.3kI(C) Resistor, 1/4W

296-6640

4

4.7kI(C) Resistor, 1/4W

296-4769

1

10kI(C) Resistor, 1/4W

296-4743

1

22kI(C) Resistor, 1/4W

296-4755

4

100kI(C) Resistor Trimmer

754-2639

3

0.1I.25F Capacitor, 50V

648-0358

1

1I.25F Capacitor, 50V

613-0679

1

Speaker

623-2088

1

Power Supply, 12V, 6A

653-0049

1

Silicone Insulator Pad

619-0206

1

Heatsink for LM317K

619-0158

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