Do neighborhood animals dig up your flower beds or get into your trash? Rick Prescott created a computer-controlled "machine gun" to help deter local pests, including the two-footed kind that invade work cubes. Rick mated an infrared sensor with a Nerf-brand gun that shoots spongy "bullets" to create the Infrared-Seeking Sentinel. An Atmega168 microcontroller tracks a heat source and unleashes either a single shot or a fury of automatic fire. Zap, zap, zap. Take that, Mr. Dog.
Get Build Instructions and Parts List | Post a Comment | Watch the Video - Part 1 Part 2 Part 3 | Submit Your Gadget Freak Design Updated Gadget Freak 173 Schematic Gadget Freak Parts Listing - Excel Format Allied Electronics Parts
Amount Description Part # 1
Header, 2 Pin, Right Angle
Header, 4 Pin, Right Angle
Header, 6 Pin, Straight
DIP Switch, Surface Mount, 4 Position
Rocker Switch, 2 Position
5V Regulator, LM2937IMP-5.0
10 µF Capacitor, Tantalum, SMT
22 µF Capacitor, Tantalum, SMT
Cap 0.01µF 50V, 0603 Ceramic Chip
ULN2803ADW, Darlington Transistor Array
Push Button, Normally Open
Rocker Switch, SPDT, On-Off-On
0.1 µF Capacitor, 100V
330-Ohm Resistor, 1/4 watt, 1%
18 pFCapacitor, 16V, 0603 Ceramic Chip
10 KOhm Resistor, 1/4W, 5%
Enclosure, 4.7x4x2 inches
Power MOSFET, SUD23N06-31L-E3
10K Ohm Resistor, 1/4W, 5%
12V Battery, 7.2 AHr, Sealed Lead Acid
Stepper Motor, 12V DC
Connector, 2 Pin
Connector, 4 Pin
Connector, 6 Pin
Heat Shrink Tubing, 3/4-in. Diameter
Heat Shring Tubing, 3/8-in. Diameter
Heat Shrink Tubing, 1/8in. Diameter
Spiral Wrap, 1/4in. Diameter
Today's robots should be respected, and humans should be wary of their growing skills and sophistication. Quite simply, robots are better than us in a lot of ways. Here are 10 of them.
3D printing has met up with drones in a 3D-printed UAV. University of Sheffield engineers printed the prototype drone in 24 hours from ABS plastic using Fused Deposition Modeling.
Product design is changing with advances in technology and outsourced manufacturing. The Art of Product Design spells out the future of design engineering.
AMD is set to launch the industry's first 16 GB workstation graphics card -- the W9100.
Samsung's 5th-generation Android-based Galaxy smartphone includes a fingerprint scanner, updated camera and display, and water/dust resistance.
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