EVBox charger projects

A small replacement for the original EVBox modem that makes G2 and G3 chargers operate completely stand-alone. No backend, cellular connection or subscription is required. The module provides automatic charging when a vehicle is connected. It covers compatibility and where to buy.

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Step-by-step installation instructions for replacing the original EVBox modem with the autostart module. Currenly available in English, Dutch, German, French, Greek, Portugese, and Spanish.

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The story behind designing and building the autostart module. It covers firmware, testin, parts sourcing, production, more testing, sales, G2 support, and many other aspects. Downloads include hardware design, firmware source, and design documentation.

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An exploration of the proprietary EVBox ChargeStation Tool used to configure EVBox chargers. This project reverse-engineers the software and its USB interface, and documents how to use open hardware instead of the original EVBox adapter.

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Copies of the EVBox software and the open-source physical and virtual adapter projects developed during the reverse-engineering work.

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The original reverse-engineering project. It documents how the EVBox modem and charger talk to each other, and replacing the modem with a Raspberry Pi so the charger runs stand-alone (including how I bricked it, and fixed it). This project sparked all the others.

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Detailed documentation of the EVBox Max protocol used for communication between modules in G2 and G3 HomeLine and BusinessLine chargers, possibly include G4 and PublicLine as well. Covers every protocol layer from the physical connection to individual commands, with example captures.

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A reference to the EVBox hardware found during the research and reverse-engineering work. It includes charger boards, communication modules, decoding serial and model numbers, and several other bits of information. This page is still a work in progress.

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A collection of original EVBox documentation, including installation and commissioning manuals, local cluster documentation, pinouts, and the EVBox Max protocol specification.

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Software developed during the project for simulating, communicating with, and controlling the EVBox charger.

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Harm Otten describes building a home energy-management system around a Raspberry Pi, Node-RED and ESP8266 devices. His EVBox work includes reverse engineering the internal RS-485 interface and building an interface for monitoring and controlling the charger, including changing the charging current.

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An ESPHome-based controller for selected EVBox G2 chargers using an ESP32 and RS-485. It integrates with Home Assistant and provides remote start/stop, charging-session tracking, solar-surplus charging and dynamic current control.

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An ESPHome component for controlling an EVBox charger over RS-485. It integrates with Home Assistant and supports dynamic charging-current control for applications such as load balancing and solar charging.

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A bridge for EV chargers that provides a simple REST API. The project currently focuses on EVBox chargers and can be used to interface with them from other software.

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An unofficial C++ library for communicating with EVBox chargers using the Protocol Max RS-485 interface. It provides an implementation of the protocol for reading and controlling compatible chargers.

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An EVBox integration for nymea supporting chargers using Protocol Max v4 over RS-485. It can be used to control compatible EVBox chargers locally without relying on cloud control.

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