Using the MCP4725 12 Bit DAC with Arduino

I was testing out the MCP4725 12 bit digital to analog converter module with Arduino Uno, using I2C at 400 KHz and generating a sine wave from a 512 element look up table. Part of my investigation led me to look at what is required to configure and communicate with the DAC, and also what kind of overhead is added by the Arduino while sending out the data. I used the example sketch from the Adafruit library shown in the video. Support the channel by using these affiliate links to check out Banggood's sale on Tools & Electronics this month (2021 4.07 - 4.18) :