Product description
The SparkFun Triad Spectroscopy Sensor is a powerful optical inspection sensor. Three AS7265x spectral sensors are combined alongside visible, UV, and IR LEDs to illuminate and analyze various surfaces using light spectroscopy. The Triad consists of three sensors: the AS72651, the AS72652, and the AS72653, and can detect light from 410 nm (UV) to 940 nm (IR). In addition, 18 individual light frequencies can be measured with precision down to 28.6 nW/cm² and an accuracy of +/-12%. Utilizing the Qwiic system, no soldering is required to connect it to the rest of your setup. 0.1"-spaced pins are also broken out in case a breadboard is preferred.
The Triad communicates over I2C by default or via 115200 bps serial. A complete Arduino library has been developed to access all features, including taking readings and illuminating LEDs via the Qwiic I2C interface. The Triad can also be configured to communicate over serial using an AT command set.
Light spectroscopy is a fascinating field, and the Triad makes previously prohibitively expensive equipment accessible at the desktop level. The AS7265x should not be confused with highly complex photon spectrometers, but the sensor array provides the ability to measure and characterize how different materials absorb and reflect 18 distinct frequencies of light. A full Arduino library has been developed to make reading from and interacting with the Triad straightforward and efficient.
The SparkFun Qwiic Connect System is an ecosystem of I2C sensors, actuators, shields, and cables that simplifies prototyping and reduces errors. All Qwiic-enabled boards use a common 1 mm pitch, 4-pin JST connector. This minimizes PCB space requirements, and polarized connections ensure correct orientation every time.
