Page 183 - 15 Dangerously Mad Projects for the Evil Genius

160 15 Dangerously Mad Projects for the Evil Genius

P A RT S BIN

Part Quantity Description Source
1 Arduino Duemilanove, Uno, or clone Internet, Farnell: 1813412
R1 1 100 0.5-W metal film resistor Farnell: 9339760
R2 1 10k 0.5-W metal film resistor Farnell: 9339787

D1 1 IR sender LED Farnell: 1020634
D2 1 1N4004 Farnell: 9109595
T1 1 IR phototransistor Farnell: 1045379
T2 1 N-channel power MOSFET FQP33N10 Farnell: 9845534

Coil wire 50 meters 24 AWG enameled copper wire Farnell: 1230982
Wood 3 feet (1 meter) of ⁄8-inch (15mm) Hardware store
5
(sides and top) square section
Wood (base) Block about 3 ⁄2" (90mm) 1 ⁄2" (40mm) Hardware store
1
1
1
Wood screws 6 1 ⁄2" (30mm) Hardware store
Coil former 1 3" (80mm) ⁄8" (8mm) diameter steel Hardware store
3
bolt and nut
1
Coil washers 2 Large plastic bottle caps 1 ⁄2" (35mm)
Power supply 1 12V 1.5A (or more) power supply Farnell: 1279478
with 2.1mm connector

Magnet 2 Neodymium rare-earth magnet eBay, Craft and Hobby
10mm ( ⁄8") in diameter store
3
Ping-pong ball 1
Small plastic 2 Recycled plastic containers for a
bottles yogurt-based health drink

The dimensions of the wood are not critical, as
T OOLBO X
long as the upright sides of the frame are about
3 ⁄2 inches (90mm) apart, so use whatever lumber ■ An electric drill and assorted drill bits
1
you have on hand. ■ Soldering equipment
You will also need the following tools shown in ■ A hot glue gun or epoxy resin glue
the Toolbox. ■ A wood saw
Figure 13-2 shows the complete project. ■ PVC insulating tape

■ A computer to program the Arduino
■ A USB-type A-to-B lead (as used for
printers)