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The digital light sensor’s 16 bit luminance output is embedded in the I2C data that is sent to the microcontroller/baseband processor. The high bytes (8 thru 15) and low bytes (0 thru 7) are sent in the I2C data. This example shown here indicates the I2C high gain output data is 1000_0011 and 1001_0000. Based on this 16 bit output, the calculated luminance is 28067 lux. If L or M gain modes are used, the lower bytes are 0’s.
PTM Published on: 2012-01-09
