Finished writing a driver library for the TSL2561 digital light sensor. This small i2c device has 2 diode sensors in it: one for broadband light spectrum, and one for infrared only. The equivalent human-eye response level in Lux can be calculated from the two readings.
I picked mine up for under AUD$3.00 delivered from AliExpress.
All connected up to ThingVerse for logging!