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Peter, I'm doing this in part for the interest in doing so. I have the hope that I can get something out of it which is more effective than I can buy but mostly I'm enjoying the process of learning.
My preferences
- my own involvement for the fun of learning
- minimise power usage and don't do unnecessary heating (or miss heating when I should)
- extendable - I'd prefer not to be limited to a set number of ports although I can't see why I'd need many
- upgradable, if I find a better way of doing things I'd like to be able to go with it.
- I'd like to be able to just add in heater modules and have the controller manage them.
I've not yet decided if I'll add in digital readouts on the controller, I could add in an LCD screen (or 7-segment led panels) and show a few temperatures (ambient, dew point and individual element temps) but I've not put much thought into that yet. I have pondered small PCB's for the heater electronics but I'm still looking at options for that. If I do go PWM then I will probably need to do something for \\
that.
Bob
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