See ESP8266 remote power display for energy monitor – EV3 for an update…
ESP8266 remote power display for energy monitor documented a design and some variations for a real power display display using emontx3 / emonhub / mqtt. This article documents a simple compact implementation.
Hardware
The remote power display uses a ESP8266-12E devkit 1.0 module, a common 3.3V 4 digit 14.2mm seven segment LED module with 74HC595 shift register per digit. The particular LED module has sufficient space to mount the ESP8266 inside the module.
Above, the interior of the module that suits the implementation. Continue reading ESP8266 remote power display for energy monitor – EV2