Is anyone using a mini-DCC or other home built system?
I've started building a mini-dcc type system to replace my Bachmann EZ Command controller that doesn't really seem to be working right anyway. I'll explain more on that at the end of the post.
I got the PIC-board/keypad/LCD display portion done yesterday and the software seems to be working fine. :-) The display is working and the buttons seem to do what they are supposed to. I still need to solder up the power part (H-bridge) and the safety stuff (emergency stop, DCC presence/short-circuit detection etc). I'm using an LMD18200, so I should be able to supply up to 3A to the track. I'm sorta copying this persons implementation:
Any advice or comments?
Bachmann EZ Command Woes: The Bachmann controller I have refuses to send a speed setting of 0 to any engine. As if it doesn't think I've turned the speed knob far enough to the left. :-/ It worked ok when it was new, but after a few days it started acting up. At first it was intermittent and now it's a full time thing with new symptoms developing. It's really annoying, you can't stop any of the engines once you move them. They just creep around at speed step 1.