P1-Meter-ESP8266

Original code by jantenhove on GitHub, I altered the code to add a screen and make it work with my own server. The original code works with Domoticz, be sure to check it out!

Software for the ESP2866 that sends P1 smart meter data to Domoticz (with CRC checking and OTA firmware updates)

Installation instrucions

• Make sure that your ESP8266 can be flashed from the Arduino environnment: https://github.com/esp8266/Arduino
• Install the SoftSerial library from: https://github.com/plerup/espsoftwareserial
• Place all files from this repository in a directory. Open the .ino file.
• Adjust WIFI, Domoticz and debug settings at the top of the file
• Compile and flash

Connection of the P1 meter to the ESP8266

You need to connect the smart meter with a RJ11 connector. This is the pinout to use

Connect GND->GND on ESP, RTS->3.3V on ESP and RxD->any digital pin on ESP. In this sketch I use D5