In this guide, you learned how to build a power meter based on the ESP8266, using a featherwing OLED add-on to display the measured power. The project was also sending data directly to Adafruit IO.

You can now of course take what you learned in this article and use it in several other projects. You can for example use this project on several devices in your home, and have them all display the current power used by the device, while monitoring all the devices from an Adafruit IO dashboard.