Bluetooth in 3 Rail

Rather than offering various boards with different current ratings, I would prefer a modular design with the radio system and the motor driver as separate components.  The radio could then have a 5 wire interface that would allow you to connect it to whatever current rating motor driver you desire, based on the space you have and load you need to drive.  100mA would be more than enough to drive optocouplers on any motor driver you desire, whether 1 amp or 100 amp.  Such an output would also allow reuse of something like Lionel's DCDR, which if I recall uses 24 amp triacs.  

If you wanted to get fancy you could also offer logic level outputs for various features such as lights and smoke.  

JGL

Bob   Tony lives in New South Wales I live in South Australia a few thousand kilometres away. Ive already built one of Deltangs Transmitters the TX72 much the same as the TX22, this gives me control of 12 loco's independently, at $50 for a kit its pretty good, but the 3amp board gets expensive at $75 Australian. The truth is an equivalent, with separate receiver and ESC can be done for $35 with boards out of China. The difficulty is PWM motor frequency, I wont 16khz (Deltang uses this, Blue rail just offered an up grade to it) the Chinese haven't got it yet real modellers don't wont 2khz, ( all thou I think this is all Lionel is using, at a guess) wither your into choppers, rock crawlers, or trains 16khz is smother. Pololu also makes a nice ESC, so for me, it should be better priced, to compete with DCC etc. I think the Bluerail board will just scrap in with the right motor, but it will be over a $100 Australan I would think, and again this doesn't compete well, still ! Im keen.

with DCC etc. But Im still keen to try it.     cTr...(Choose the Right)