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DAC (Digital-to-Analog Conversion)

LibXR::DAC provides a platform-independent abstract interface for digital-to-analog conversion (DAC), used to output an analog quantity represented by a floating-point value.

Interface Definition​

class DAC {
public:
  DAC() = default;

  // Outputs the DAC floating-point value
  virtual ErrorCode Write(float voltage) = 0;
};
  • Write(voltage) is a pure virtual function, and must be implemented by derived classes;
  • voltage is in volts; the existing backends (STM32, ESP32) clamp it to [0, reference voltage] before output;
  • Returns ErrorCode, indicating success or failure of the operation;

Example Usage​

// Example: output 1.23 V
dac->Write(1.23f);