Page 237 - Making PIC Microcontroller Instruments and Controllers

FROJECi 3 2A5

glued together with hot glue if more comprehensive shop facilities are not readily
available.
It is very important that you actually make the physical components needed for this
"leaming
Foject. They provide an impo(ant part of the by doing" experieDce because
they expose you to all sorts of things no one ever expects. It is what the real world is
all about and it can all be done quite easily with some pieces of cardboard, a mat knife,
and a hot glue gun. The idea is to build it. It does not have to be perfect. What you need
to make is shown in Figure 17.2.

220 oHt\,ts

Schematic and photograph of a simple
escapement. (Single sensor escapement 16r marbles using lwo
senos, Sensornotshown. Figure 17.1 lorsensor)
See