Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Model | AS7341 |
| Spectral Channels | 11 Channels (8 visible + NIR + Clear + Flicker) |
| Interface | I2C / SPI |
| Operating Voltage | 1.7V to 3.6V |
| Wavelength Range | 400nm to 950nm |
| Integration Time | Programmable (2.78µs to 655ms) |
| Package Type | LGA-11 Module with Breakout Board |
| Dimensions | 20mm x 15mm x 3mm |
| Application | Color Matching, Light Sensing, Health Monitoring |
| Compatibility | Arduino, Raspberry Pi, ESP32, STM32 |
Anonymous
Mar 29, 2026
Rating: 4/5
Great value, minor documentation gaps
The hardware quality is solid and the readings match our benchtop spectrometer surprisingly well for the price point. Deducting one star because the datasheet could be clearer on register mapping for the flicker detection mode. Otherwise, a great purchase.
Anonymous
Mar 20, 2026
Rating: 5/5
Easy to use for beginners
As someone new to embedded sensors, I found this module very forgiving. It worked out of the box with the example code for ESP32. The color temperature readings help me understand ambient lighting conditions for my smart home dashboard.
Anonymous
Mar 12, 2026
Rating: 5/5
Perfect for smart lighting calibration
I used this to calibrate a custom LED grow light system. The ability to measure specific wavelengths allows for precise tuning of the light spectrum. The breakout board pins are well-labeled and easy to solder.
Anonymous
Mar 08, 2026
Rating: 5/5
Excellent precision for color projects
This sensor module is fantastic for my automated sorting project. The spectral data is very consistent, and the I2C library provided by the community made integration with my Arduino straightforward. Highly recommended for hobbyists needing accurate color temp readings.
Anonymous
Mar 05, 2026
Rating: 4/5
Good for photography accessories
Building a custom light meter for film photography. The sensor responds quickly to changes in illuminance. It's not quite as fast as dedicated photography gear, but for the cost and programmability, it's an excellent choice.
Anonymous
Mar 01, 2026
Rating: 5/5
Reliable for educational kits
We bought ten of these for our university robotics lab. They have held up well under student use and provide reliable data for our line-following and object recognition experiments. The multi-channel capability is a huge plus.
Q: What is the maximum I2C clock speed supported?
A: The AS7341 sensor supports standard mode (100 kHz), fast mode (400 kHz), and fast mode plus (1 MHz) for I2C communication, depending on your master controller's capabilities.
Q: Can this sensor detect UV light?
A: No, the AS7341 is designed for the visible spectrum and near-infrared (up to approx 950nm). It does not have channels specifically calibrated for ultraviolet (UV) detection.
Q: Does this module come with a built-in voltage regulator?
A: Yes, the GY-AS7341 breakout board includes an onboard LDO regulator, allowing you to power it directly with 5V from most microcontrollers, though the sensor itself operates at lower voltages.
Q: How do I calibrate the sensor for absolute lux values?
A: Calibration requires comparing the sensor output against a reference lux meter under controlled lighting. You can then apply a scaling factor in your code. The datasheet provides a detailed procedure for calculating the conversion coefficients.
Q: Is there a Python library available for Raspberry Pi?
A: Yes, several open-source Python libraries are available on GitHub that support the AS7341 via the smbus2 package for Raspberry Pi. We recommend checking the 'ams-osr' official repository for examples.
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