How to connect ESP32 Ethernet Module to EV charging station

Rohith Kumar -

Hello People. This article discusses about how to connect ESP32 Ethernet Module to EV charging station. You can connect OpenEVSE electric car charge controller to a Ethernet network to enable UI interface and control and data logging connectivity.

ESP32 Ethernet Module will be pre-loaded with ESP32 firmware V4.x and wiring harness attached ready as a drop-in replacement for the WiFi gateway modules used on OpenEVSE units.

This module also supports WiFi connection, but if only a WiFi connection is required a better option would be to choose the non Ethernet WiFi gateway module.

How to connect ESP32 Ethernet Module to EV charging station

Connectivity

  • Emoncms.org: Emoncms is a open-source web-app for processing, logging and visualising energy, temperature and other environmental data.
  • emonPi: The emonPi is an all-in-one Raspberry Pi based energy monitoring unit making for a simple installation where Ethernet or WiFi is available at the meter location. The emonPi can monitor two single-phase AC circuits using clip-on CT sensors. The emonPi can also monitor temperature, and interface directly with a utility meter via an optical pulse sensor.
  • data.openevse.org: OpenEVSE provides energy monitoring architecture for Electric Vehicle Charging Stations as well as energy monitoring devices. The Open Source architecture provides expandability to import data from any source.
  • MQTT
  • Ohmconnect

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Ok. Let's get back to the article.

Data Readings:

  • Current measurement
  • Temperature measurement
  • Pilot signal measurement

Control

  • Web UI
  • Solar PV diversion
  • RAPI over HTTP
  • RAPI over MQTT
  • RAPI API Documentation

Includes

  • Olimex ESP32 WiFi Module
  • UBEC 5V Regulated power module
  • Custom power & communications cable
  • Latest OpenEVSE WiFi V3 code preloaded

Setup & Documentation

  • ESP32-Ethernet Gateway Hardware Setup Guide
  • Hardware Connection Guide (web)
  • Software User Guide

Technical

  • GitHub Firmware repository OpenEVSE Wifi 4.0
  • Olimex ESP32 WiFi Module OpenHardware Repo

Hope this article on how to connect ESP32 Ethernet Module to EV charging station is useful to you . Please read about Tata power EV charging stations in Andhra Pradesh