Gadget Freak Case 164: Let an MCU Feed Your PetsGadget Freak Case 164: Let an MCU Feed Your Pets

DN Staff

May 13, 2010

6 Min Read
Gadget Freak Case 164: Let an MCU Feed Your Pets

Pet ownerswho want to spend a day hiking, at the beach, shopping at the mall or even aweekend far from home can build an automatic pet feeder to dispense water anddry food at a preset time. Tom Thompson, Julie Redmond, Curtis Siebenaller andNathan Woodworth at Colorado State University explain how to combine electronicand mechanical devices to do just that. Their design would satisfy even Morris,the world's most finicky cat.

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Gadget Freak Case 164 Let an MCU Feed Your Pets

Gadget Freak Case 164 Let an MCU Feed Your Pets A



Amt

Part Description

Allied Part #

1

NTE392 Transistor

935-8009

1

TIP120 Transistor

568-1140

3

PN2222A Transistor

568-1125

2

DPDT Relay

788-1089

1

24x2 Character LCD

355-0020

1

16x2 Character LCD

355-0010

4

0.1 I.25F Ceramic Capacitors

541-0340

1

0.1 I.25F Polyester Capacitor

862-2142

13

100-ohm Resistor, 1/4W

296-6638

8

1000I(C) Resistor, 1/4W

296-4741

1

10kI(C) Resistor, 1/4W

296-4743

2

1MI(C) Resistor, 1/4W

296-6331

4

3MI(C) Resistor, 1/4W

296-6574

1

1500I(C) Resistor, 1/4W

895-0540

1

3000I(C) Resistor, 1/4W

895-3159

3

6000I(C) Resistor, 1/4W

895-0605

4

1N5059 Diode, 2A

431-0632

3

12I(C) Resistor, 2W

296-2323

1

Heatsink for NTE392

619-0087

1

Heatsink for TIP120

296-6966

3

18-Pin DIP Socket

374-5536

1

28-Pin DIP Socket

374-5548

2

Infrared LED

387-0014

2

Photo-transistors

387-1799

Get Build Instructions

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