Of course, you could get rid of the nice-sounding DAC chip and output 5-bit PWM directly ... for getting started with your ESP8266 project. Oh wait, you want Arduino IDE support?

Yes, your Arduino has ADC and PWM, but if you need a true analog output, you should add analog capability to your Arduino board with the help of an external DAC. The nifty MCP4725 chip could be a ...

Despite a wealth of tutorials for setting up and writing code for the ESP8266 WiFi module, there has not been much of anything on programming this cheap wireless module with the Arduino IDE.

Mayhew Labs have unveiled a new DAC ... the Arduino platform in the form of the Extended DAC Shield that takes the form of a high-speed, precision, eight channel, -10V to +10V analog output ...