DFRobot
Gravity: AS7341 11-Channel Visible Light Sensor
We live in a colorful world, but how much do you really know about color? Your eyes may deceive you, while the sensors don’t lie. This Gravity: AS7341 11-Cha...
We live in a colorful world, but how much do you really know about color? Your eyes may deceive you, while the sensors don’t lie. This Gravity: AS7341 11-Channel Visible Light Sensor can tell you the truth about color.
Gravity: AS7341 11-Channel Visible Light Sensor employs the new generation of AS7341 spectral sensor IC launched by the well-known AMS company. The sensor features eight channels for the visible light, one channel for near-IR, and one channel without a filter. Also, it integrates a dedicated channel to detect ambient light flicker. Besides that, this sensor comes with 6 independent 16-bit ADC channels for data processing in parallel. The two on-board extra-bright LEDs can supply light in a dark environment.
RGB Color Sensor vs AS7341 Sensor
Yellow LED WS2812 Simulated Yellow Recognition result of RGB color sensor Red+Green Red+Green Recognition result of AS7341 visible light sensor Yellow Red+Green
You can click to find information about visible light.
Related Project:
Spectrophotometer Experiment Based on AS7341 Spectral Sensor
FEATURES
- 8 optical channels covering the visible spectral range
- 50Hz and 60Hz ambient light flicker detection
- 6 independent 16-bit ADC channels
APPLICATIONS
- High accuracy color detection and matching
- Color mixing effect detection
- Lighting color temperature adjustment
- Lighting atmosphere control
- Modern plant cultivation
SPECIFICATION
- Power Supply: 3.3V~5V
- Visible Light Detection Range: F1(405-425nm), F2(435-455nm), F3(470-490nm), F4(505-525nm), F5(545-565nm), F6(580-600nm), F7(620-640nm), F8(670-690nm)
- Operating Current(LED Off): <5mA
- LED Driving Current: Class 1-20 (4-42mA)
- I2C Address: 0x39
- Operating Temperature Range: -30℃~85℃
- Operating Humidity Range: 5%RH~85%RH
- Dimension: 22*20mm/0.87*0.79”
DOCUMENTS
Spectrophotometer Experiment Based on AS7341 Spectral Sensor
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- AS7341
- AS7341 is an earlier related light-sensor chip with different features and driver requirements. It matters here because code written for an AS7341 may not work with this AS7343 breakout without using the correct driver.
- flicker detection
- Flicker detection measures rapid changes in light output, such as the pulsing from some LEDs or mains-powered lamps. This matters if you are characterising light sources or need to avoid lighting that may interfere with measurements or cameras.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- I2C address
- An I2C address is the number a device uses so a microcontroller can tell it apart from other devices on the same I2C bus. It matters because two devices with the same fixed address may conflict if used together.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- RGB
- Short for red, green and blue, usually referring to an LED that can mix those three colours. It matters because controlling an RGB LED teaches how separate outputs combine to create different colours.
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Brands
Sensors & Input
Supplier page — dfrobot.com
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Related Tutorials
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