Originally Posted by
RedfordReefer
PWM or DC? What are you using for a RTC?
I'd be interested in seeing this, as I have more or less the same thing here. 4PWM channels, but 20GPIO pins (can tap relays off the pins), with the ability to take I2C, One-wire, and other inputs for real-time decisions. I had considered just integrating a reef controller last year, but I sold the tank. Still have the hardware here.
I am currently experimenting with the Cortex-M3 processor and a 2.4" LED touchscreen (320X240) as a front end.