Gravity: AS7341 11-Channel Visible Light Sensor

We live in a colourful world, but how much do you really know about colour? 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 colour.

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 onboard 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 colour sensor



Recognition result of  AS7341 visible light sensor



You can click to find information about visible light.

Related Project:

Spectrophotometer Experiment Based on AS7341 Spectral Sensor


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


  • High accuracy colour detection and matching
  • Colour mixing effect detection
  • Lighting colour 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”



  • Gravity: AS7341 Visible Light Sensor x1
  • Gravity-4P I2C/UART Sensor Cable x1