Re-design is not an issue at this time as I have 30 days to revise the circuit diagram. I plan on hand etching a prototype before then to evaluate the product.
I will defintely consider the ground pins and a second header for daisy-chaining the units. The main reason the power and SMBus headers are separate is because I could NOT find a standard as far as +5V being provided at the SMBus header on the mother boards. So, I left them separate to allow folks the option of making a molex tap cable or some such.
Anyhoo... ideas are good... I may throw up some optional designs and manufacture them all just so I can try them. Again the boards are free... but the components cost money.
Also as stated, the ground for each remote tempreture sensor was left out because I was going to twist the 30 guage pair and only make them five feet each. Under the maximum before grounding is required.
