OPTICAL SENSOR - THE FUNCTION OF RED LED — TomTom Community

OPTICAL SENSOR - THE FUNCTION OF RED LED

XherdanXherdan Posts: 26 [Apprentice Traveler]
The Optical sensor is constituted by 1xRed LED, 3xGreen LED, plus a single IR sensor. What is the function of the RED LED? Why is it always off during my activities?

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