Hardware Reference
In-Depth Information
Figure 3-10. FLORA light sensor
FLORA UV Index Sensor
Sunscreen reminder projects are super-easy with the FLORA
Si1145 UV index sensor ( Figure 3-11 ). It has a calibrated UV
sensing algorithm that can calculate UV index, the common
measure for sun intensity used in weather forecasts. This sen-
sor can also detect visible and infrared light, though not as pre-
cisely as the lux sensor mentioned earlier.
Figure 3-11. FLORA UV sensor
The sensor has a digital (I2C) interface. Just like with the other
FLORA sensors, you can connect only one UV index sensor to
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