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<para>
- The MicroPeak USB adapter has a small phototransistor on the
- end of the board furthest from the USB connector. Locate
- this and place the LED on the MicroPeak right over
- it. Turn on the MicroPeak board and adjust the position
- until the blue LED on the MicroPeak USB adapter blinks in
- time with the orange LED on the MicroPeak board.
+ The MicroPeak USB adapter has a small phototransistor on
+ the end of the board furthest from the USB
+ connector. Locate this and place the LED on the MicroPeak
+ directly in contact with it. The MicroPeak LED and the
+ MicroPeak USB adapter photo need to be touching—even a
+ millimeters of space between them will reduce the light
+ intensity from the LED enough that the phototransistor
+ will not sense it. Turn on the MicroPeak board and adjust
+ the position until the blue LED on the MicroPeak USB
+ adapter blinks in time with the orange LED on the
+ MicroPeak board.
</para>
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