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-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

You can click to find information about visible light.

• 8 optical channels covering the visible spectral range
• 50Hz and 60Hz ambient light flicker detection
• 6 independent 16-bit ADC channels 

• High accuracy color detection and matching
• Color mixing effect detection
• Lighting color temperature adjustment
• Lighting atmosphere control
• Modern plant cultivation

• 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”

Here, I'll use the DFRobot AS7341 visible spectrum sensor to make a detailed comparison of several types of light bulbs commonly used in the household.

In this experiment, I am going to use DFRobot AS7341 Spectral Sensor to make a simple spectrophotometer, and carry out an experiment to measure substance concentration in different solutions by collecting data, fitting curve, etc.