Reference

API Description

/**************************************************************************
                                  I2C & PWM Series
  **************************************************************************/
    /**
     * @fn begin
     * @brief Initialization function
     * @return Returns 0 for success; other values indicate failure
     */
    int begin(void);

    /**
     * @fn setDACOutRange
     * @brief Set the DAC output range (only valid in I2C mode)
     * @param range DAC output range
     * @n  eOutputRange5V (0-5V)
     * @n  eOutputRange6V (0-6V)       GP8630N, GP8600
     * @n  eOutputRange10V (0-10V)     
     * @n  eOutputRange_10V (-10-0V)   GP8630N
     * @n  eOutputRange_12V (-12-0V)   GP8630N
     * @n  eOutputRange12V (0-12V)     GP8630N, GP8600
     * @n  eOutputRange20MA (0-20mA)
     * @n  eOutputRange24MA (0-24mA)   GP8630N, GP210 
     * @return NONE
     */        
    void setDACOutRange(eOutPutRange_t range);

    /**
     * @fn setDACOutData
     * @brief Set the DAC output value for a single-channel module
     * @param data DAC value
     * @note  In PWM mode, the current/voltage output is determined by the PWM duty cycle. Select the current/voltage output range via DIP switches according to the silkscreen on the back of the module.
     * @note  In I2C mode, the current/voltage output is determined by the output range set via setDACOutRange().
     * @return NONE
     */
    void setDACOutData(uint16_t data);