With a logarithmic response over a large dynamic range, this sensor can be used in a wide range of lighting conditions with no re-calibration. From 3-Lux (twilight, or dim indoor lighting) to 55,000 Lux (A sunny day), this sensor can handle it all! The manufacturing process for these chips assures consistency from one chip to the next. Unlike CdS photocells, there is minimal sample-to-sample variation and individual calibration is not necessary.
Your electronics can now see in dazzling color with this lovely color light sensor. We found the best color sensor on the market, the TCS34725, which has RGB and Clear light sensing elements. An IR blocking filter, integrated on-chip and localized to the color sensing photodiodes, minimizes the IR spectral component of the incoming light and allows color measurements to be made accurately.
This project combines a whole heap of modules to enable a Raspberry Pi to power a large 1.2 inch 4 digit 7 segment display. A small switch switches the display between showing the temperature and the current time. The project uses a real-time clock (RTC) to ensure that the Pi always has the correct time, even if it is not connected to the Internet.