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Go-kart transmitter parts list ............................................................

The transmitter (see its schematic in Figure 11-2) includes the following parts

(several of which are shown in Figure 11-4):

150 ohm resistor (R1)

Infrared encoder (IC1)

We use a Reynolds Electronics Tiny-IR Encoder IC because it requires

less circuitry than similar ICs. Optional ICs are listed in the upcoming

section, “Taking It Further.”

5 volt regulator (VR1) (LP2950 5 volt regulator or similar)

4.7 microfarad electrolytic capacitor (C1)

IR LED, TSAL7200 (LED1)

Note that various other IR LEDs will work; http://www.rentron.comhas a

useful listing of similar IR LEDs on its site.

3-pin, 4 MHz ceramic resonator (X1)

2-pin resonators look an awful lot like 3-pin resonators, so be careful

when you’re ordering from one of those catalog: Read the small print so

that you get the right one for this project.

Breadboard

LED panel mount socket (size T-1^3 ⁄ 4 )

Four pack of AA batteries with snap connector

Five 2-pin terminal blocks

Enclosure (RadioShack part #270-1806 or similar)

Velcro

An assortment of different lengths of prestripped short 22 AWG wire

You can cut and strip the wire yourself, but for short lengths, we find it

much easier to use the prestripped wire. If you have any kind of a life at

all, spending time endlessly stripping wires just isn’t worth your while!

246 Part III: Let There Be Light