⚙️ SparkFun Triad Spectroscopy Sensor – AS7265x (Qwiic)
Bring advanced light‑spectrum measurement into your projects!
With three integrated spectral sensors and built‑in UV, visible & IR LEDs, this board makes it possible to analyze how materials absorb and reflect light across 18 distinct wavelengths — from UV through visible to near‑IR.
🔍 Specifications:
Sensor: AS7265x chipset (combines AS72651 + AS72652 + AS72653)
Spectral channels: 18 independent channels
Wavelength detection range: ~410 nm (UV) to ~940 nm (near‑IR)
Sensitivity: ~28.6 nW/cm² per count
Accuracy: ± 12% (typical)
Built‑in lighting: 405 nm UV LED, 5700 K white LED, 875 nm IR LED (software‑controllable)
Interfaces: I²C (via Qwiic) by default, also supports Serial (115 200 bps) option
Connector: Qwiic JST 1 mm 4‑pin (for plug‑and‑play with Qwiic ecosystem)
Other: 0.1″‑spaced breakout pins available if you prefer breadboard or custom wiring
💡 Features & Why It Stands Out:
Combines three spectral sensors into a single board — giving access to 18 channels across UV‑VIS‑NIR.
Works in the Qwiic ecosystem, so no soldering required — great for rapid prototyping.
Enables material characterization: see how things absorb/reflect light at various wavelengths — useful for color sensing, material property studies, environmental monitoring, etc.
Built‑in LEDs for illumination mean you have the light source and the sensor integrated.
Flexible interface: Use I²C for typical microcontrollers or switch to Serial if needed.
Software library available (Arduino, etc.) to get data easily and start building.
Ideal for hobbyists, researchers, students — a way to access measurement capabilities that used to cost much more.