Chip-tuning your Picaxe 28 board in a snappy way
Update: Note that the newer Picaxe models can change a lot by commands like setfreq alone :)
This is only for dummies like myself using Picaxe 28Xx standard board. However, the thinking may also apply to those making their own boards.
Specially if you are doing serial communication to say a LCD display, an Easy Radio module, a dedicated sound chip, your PC or something else.. you may need to change the clock speed with an external resonator.
Resonators cannot be found in my local electronics shop, but they are dirt cheap in the Picaxe shop, so I bought a handfull some time ago - in different speeds. I can recomend that!
Then - if you are using the standard board, you will have to de-solder the resonator on the board.
Instead of just soldering on the alternative resonator, I solder on 3 pins like this:
.. and as you can see on the main picture on this post, I stick them resonators into thingeys, so they can just be interchanged :)
It does not matter which way they turn!
See the basic command setfreq in your manual!