A quick question concerning the maximum wattage each of the fan GPO FETs are capable of. If I'm not mistaken the FETs used are NDS335N and are rated at 1.7A so if the duty cycle was 100 percent it could get very hot. However, on resistance is very low for these devices.

Paradigm

The 2x4 header is a Godsend and sheer stroke of genius, thank you for pointing it out. UPS delivers the display this Friday and I am doing some rough coding. The new information you provided does simplify things, always remember (KISS-keep it simple stupid). I will be using FTDIs FT2232C ...

My real concern is the PIC16F877A firmware. I will be programming a PIC18F8720 to control the MX4 as the LCDC software would, in a scaled down way, in effect replacing the PC communications. I have a phase change evaporator attached to my PC CPU that has to reach a user defined temperature (-30 C ...

My MX412 will be here on Friday and I wanted to pester you some more before it gets here. You mentioned

I was pretty sure what you said was the case but it never hurts to ask. Thanks for the fast reply, I'm ording one now. More posts to follow.
Yuriy

Hello everyone, I