• @Gordon, see your point about getting a chip vs. a module, where latter is almost a complete system. That both chip and module are ARM4 based does not really make them differently from an coding point of view. 'Weak' outputs can be complemented with drivers that are now widely available. Therefore, including multiple components - module(s) w/ complementing chips - will bring a good solution.

    Regarding complementing drivers, I'm thinking along the lines of a driver with two to four full H bridges that also can be powered from an extra rail with different voltage than what is needed to run the logic (from simple TI DRV8847, MPS MP6550,.. to more complex Allegro A4987, for example).


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