#28, C1: Ambient Light Sensor
Function: Visible spectrum ambient light sensor
Form factor: C1
Special needs: Tibbit #00-3
Power requirements: 5V/2mA
Details
This Tibbit is based on the BH1721FVC ambient light sensor with an I²C interface. The sensor is implemented as a C1 device with a clear (transparent) window. The module measures the light intensity of the surrounding environment, and its spectral response is close to that of a human eye.
The module outputs ambient light measurements as 16-bit values that do not correspond to any standard measurement units.
This C1 device requires Tibbit #00-3 to be installed in the neighboring "M" Tibbit socket. Tibbit #00-3 provides two direct lines for I²C communications, as well as the ground and +5V power for the BH1721FVC IC.
Sample Project
The use of Tibbit 28 is illustrated by a Tibbo BASIC test project. You can find it here: https://github.com/tibbotech/CA-Test-Tibbit-28.