How to Build and Flash ESPurna Open Source Firmware to Sonoff POW Wireless Switch
Instructions to install ESPurna firmware to +ESP8266 based +ITEAD Studio Sonoff POW wireless switch with power consumption monitoring function.
![](https://sp-ao.shortpixel.ai/client/to_webp,q_lossless,ret_img,w_530,h_354/https://everythingesp.com/wp-content/uploads/2019/03/g1Lu-7ysyA4wr51yJOxYid4LRArAOnS3Y9lDFUS6kQrTuCkUnY.jpg)
How to Build and Flash ESPurna Open Source Firmware to Sonoff POW Wireless Switch
Instructions to install ESPurna firmware to +ESP8266 based +ITEAD Studio Sonoff POW wireless switch with power consumption monitoring function.