Merv,
I say this to everyone, so I'll say it to you too
ALWAYS read the Product Data Sheet. Especially if in doubt when reading examples from books. Manufacturers know their product - authors
may transpose information incorrectly.
http://www.farnell.com/datasheets/36721.pdf
Have a look at the PIN FUNCTIONs on Page 3.
Read the pin descriptions. You'll see mention of 100nF capacitors.
Look at the Block diagram on Page 1.
Then look at Page 7 and the notes under 'Suggestions' on the same page.
The translation into English is a bit iffy, but you should get the idea.
Remember, not all capacitors are sutiable - even if the value is the same.
They have different characteristics, even within the same category e.g. poly-film or ceramic. They also have voltage limitations so you should ALWAYS check this is OK too.
A good ceramic capacitor is probably the best choice for this.
But, if you only have a poly film then try it. It won't take your face off in a nuclear explosion, but it probably won't be ideal for the job.
If it doesn't work then save up 10p for a good ceramic.
BUT remember, the quality of a circuit will ALSO depend on your track/wiring physical layout and suitable track widths.
If you start sharing PICAXE power and motor power down the same weedy wire or weedy ground then you are asking for problems.
Your components could be ideal, but poor execution will give poor results.
Also, and sadly not mentioned in the book, it is almost mandatory to have a capacitor across the PICAXE +ve & Gnd pins to decouple noise.
This is especially important where spikey/noisy things like motors and high/fast switched loads are used.
(Also important for precise ADC work too but that's a whole different kettle of fish).
