Modules

Stepper Motor 1 L293 H-Bridge
DC Motor 1 L293 H-Bridge, motors always on high speed
DC Motor 1? L293 H-Bridge, variable speed motor control

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Sample report We can model the module recipes something like this, linking externally to Flickr images like this as appropriate.

3953 H-Bridge?

L293 H-Bridge

AD5206 Digital Potentiometer Heather's Arduino Tutorial

AD558-JN Digital-to-Analog Converter

555 Timer

Op Amp (Possibly Jamie doing it in Sensor Wkshop)

AC Dimmer, based on Velleman

A few other possible ones to investigate: Stepper drivers:

• http://www.allegromicro.com/sf/3982/
• http://www.allegromicro.com/sf/3967/