Rotating wheels

The hd motors are still in place and unused.

BLDC motors - driver circuit required

Can't find any datasheets for the motor driver chips found in HDs.

Possible solutions:

Discrete version with 555 and 4017 http://www.hobbielektronika.hu/forum/files/61/61ef725373758910fd93d8498423b455.jpg - Worth a try.

• • cheap & easy (if it works)
• Tried it - it rotates, but very jerky.

MTD6505 http://at.farnell.com/microchip/mtd6505t-e-na/motortreiber-3-phase-bldc-10udfn/dp/2080521

• • available only as UDFN package - hard to solder
• • cheap
    Got 2 of them - soldering is pretty hard, but possible:
    

OpenBLDC http://open-bldc.org/wiki/Open-BLDC

• • Pretty over-featured for this use