Tag Archives: Power Functions

Open Power Functions

I’ve been working a lot at my Lego Power Functions receiver, I’ll summarize what’s been going on:
– I’ve had a lot of trouble with the motor driver; during development I added some series resistors to the motors I used, which kept the driver running at all input conditions; now I’m trying the real LEGO motor, I run into some issues with a driver IC. I can’t sort out how to solve them, so I’ve replaced the motor driver IC. This unfortunately means that the solderability of this board has moved to ‘undoable for people without hot air guns’.
– I’ve asked LEGO whether I would be allowed to sell this design, and with some restrictions, I am! Hooray! Maybe I can a little money with this, that would be very cool….

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