OpenEVSE WiFi for ESP32

NOTE: Breaking change! This release reccomends a minimum of 7.1.3 of the OpenEVSE firmware, features including Solar Divert and push button menus may not behave as expected on older firmware.

• For the older WiFi V2.x ESP8266 version (pre June 2020), see the v2 firmware repository

• For latest API documentation see the new Spotlight.io OpenEVSE WiFi documentation page

The WiFi gateway uses an ESP32 which communicates with the OpenEVSE controller via serial RAPI API. The web UI is served directly from the ESP32 web server and can be controlled via a connected device on the local network.

This FW also supports wired Ethernet connection using ESP32 Gateway

---

Contents

• Features
• Requirements
• User Guide
• Firmware Development Guide
• API
• About
• Licence

Features

• Web UI to view & control all OpenEVSE functions

  • Start / pause
  • Scheduler
  • Session & system limits (time, energy, soc, range)
  • Adjust charging current

• MQTT status & control

• Log to Emoncms server e.g data.openevse.com or emoncms.org

• 'Eco' mode: automatically adjust charging current based on availability of power from solar PV or grid export

• Shaper: throttle current to prevent overflowing main power capacity

• OCPP V1.6 (beta)

• Home Assistant Integration (beta)

Requirements

OpenEVSE / EmonEVSE charging station

• Purchase via: OpenEVSE Store
• OpenEVSE FW V7.1.3 recommended
• All new OpenEVSE units are shipped with V7.1.3 pre-loaded (April 2021 onwards)

ESP32 WiFi Module

• Note: WiFi module is included as standard in most OpenEVSE units
• Purchase via: OpenEVSE Store (USA/Canda) | OpenEnergyMonitor (UK / EU)
• See OpenEVSE WiFi setup guide for basic instructions

---

About

Collaboration of OpenEnegyMonitor and OpenEVSE.

Contributions by:

• @glynhudson
• @chris1howell
• @trystanlea
• @jeremypoulter
• @sandeen
• @lincomatic
• @joverbee
• @matth-x (OCPP)
• @kipk

Licence

GNU General Public License (GPL) V3