The littleBits micro sequencer sends out voltages based on the position of each of the four “step” knobs. Connect it to an oscillator and it will step through the "sequence" consecutively to make a melody (The LEDs tell you which step is active). Turn a knob all the way counter-clockwise to make the step silent. Use it in "speed" mode to set the speed using the dial, or flip the switch to “step” mode to use an input module like a pulse or button for control. In addition to its main output, it also has a trigger output, which you can send to any of your other Bits modules.