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