So, I think I have completed the hardware design for my temperature controlled humidor but since it's my first electronics project since 1998 and my first ever uC project I would really like input on what I've missed, what I've done wrong and where I've made it harder than it should be ;']
The idea-- Humidor cooled via Peltier coolers. The controllers adc gets input from 4 sets of thermistors placed outside the box at ambient, on the hotside heatsinks of my TECs, on the coldside heatsinks of my TECs and inside the humidor and from a humidity sensor inside the humidor. After various calculations (P.I.D. and P.D. + condensation/soft start considerations) it sets PWM signals controlling the TECs, the hotside fans and the coldside fans. It also turns on circulation fans when the humidor is closed (detected by reed switches) and turns LEDs on and all internal fans and the TECs off when opened. It also outputs data on an LCD and sends data to a PC/Mac via USB for logging.
It's all powered from a 24V 4.5A regulated supply.
I _think_ that covers the description but will be happy to fill in anything I've missed.
Here are the schematics of the 3 sections; power, control, and usb/lcd. They seem to show up a bit small here, but if you right click and select "view image" they'll come up bigger.