SEN0365 AS7341 Reference: API, Protocol & Pinout

AS7341

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 here find information about what visible light is.

Visible Light

Library

Download and install the AS7341 library and Sample Code. (About how to install the library?)

Communication Protocol Description

The sensor uses I2C communication with an I2C address of 0x39.

API Description

  /**
   * @brief Set gain value (0~10 corresponds to X0.5,X1,X2,X4,X8,X16,X32,X64,X128,X256,X512)
   * @param The value of register CFG1
   */
  void setAGAIN(uint8_t value);

  /**
   * @brief Read the value of sensor data channel 0~5, under eF1F4ClearNIR
   * @return The data of sModeOneData_t
   */
  sModeOneData_t readSpectralDataOne();
  
  /**
   * @brief Read the value of sensor data channel 0~5, under eF5F8ClearNIR
   * @return The data of sModeTwoData_t
   */
  sModeTwoData_t readSpectralDataTwo();
  
  /**
   * @brief Read the value of register flicker, through which the flicker frequency of the light source can be predicted
   * @return The data of register flicker
   */
  uint8_t readFlickerData();
  
  /**
   * @brief Turn the LED on or off
   * @param true or false
   */
  void enableLed(bool on);

  /**
   * @brief Set pin current to control brightness (1~20 corresponds to current 4mA,6mA,8mA,10mA,12mA,......,42mA)
   * @param 1~20
   */
  void controlLed(uint8_t current);

Other Supplementary Information

Wavelength of onboard LED

Wavelength of onboard LED