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This is an ambient
light detector, using the LX1972, a low cost silicon light sensor with spectral
response that closely emulates the human eye. The light input is converted to a
0-100%.
Hardware Interface: A PSoC input pin is connected to a high impedance analog input connection to the Analog
to Digital Converter (ADC).
Software Interface: The ambient light detector status is presented as an
8-bit unsigned char with a value of 0 to 100%.
This driver has no
user-configurable properties.
Non-Configurable properties.
• Reference: Normal
(0-2600mV internal reference).
· Supply Voltage: 5V
· Light Level to % Relationship: 100% = 375 mW/cm2 = 2570 Lux
@ 550 nm wavelength
· System Accuracy: 1% of full scale + 28% of
measurement
· Resolution: 1% (typ)