10 August 2021
TEMT6000 Ambient Light Sensor

The TEMT6000 (datasheet) can be connected to both 3.3V or 5.0V. The signal output is pulled down with the 10K resistor connected to ground, thus making a voltage divider.

The TEMT6000 is quickly saturated. The datasheet shows 10 to 1000 lux (dark to an overcast day), suggesting a limited use in that region. The estimated ohm will be 700K ohm to 7K ohm. In daglight (100K lux) the expected resistance will be approximately 70 ohm. (Need measurement)