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Description: You've always wanted to output analog voltages from a microcontroller, the MCP4725 is the DAC that will let you do it! The MCP4725 is an I2C controlled Digital-to-Analog converter (DAC). A DAC allows a digital device like a microcontroller to output analog values like a sine wave. Digital to analog converters are great for sound generation, musical instruments, and many other creative projects!