punkwe1ght/m5isobusvt

implementation of an ISOBUS-VT on ESP32 device "M5Stack"

M5IsobusVT

Implementation of an ISOBUS-VT on the M5-Stack core2 module.

...maybe the smallest ISOBUS-VT of the world !

Most of the code is from my College Reinhard Hübner (thank you very much for this great work). I only rearange some part of the code to compile it with PlatformIO and remove some unused code. See download and installation for details.

Download and Installation

• To download click the DOWNLOAD ZIP button, rename the uncompressed folder 'M5IsobusVT' ...or clone it with git.

• the project contains in the 'lib'-directory all references to used libs. There is no need to add external libs.

• copy the 'SD_CARD' folder to the root directory of a SD-card and put it into the M5-Module

Software and Hardware CAN adaption

The actual Implementation use the "M5-Stack core-2" Hardware (we need the PSRAM,so the old "M5-Stack-core" does not work). For the future we plan to adopt it to hardware with other (higher resolution) TFT-Displays. But even for this we need a ESP-32 (or ESP32-S3!?) with PSRAM.

For the CAN communication we use the internal ESP32 CAN controller and map it to GPIO36 (Rx) and GPIO26(Tx). Only for the hardware adaption a external CAN-Transmitter was used. The D-SUB connecter is wired according to a common used pinning of USB-CAN adapter.

Remark

• Don't add M5Stack as external lib, because there are some changes to the original lib. Changes from the original code are marked with 'huebner'
• We have changed the ESP32-Arduino default stack size, so if you compile it outside from Platform-IO change the stack size in the arduino startup code.

!! DONT USE IN IN A REAL TRACTOR - ONLY FOR EDUCATION AND TRAINING IN LAB !!

PlatformIO and Arduino-IDE

Projekt was build and testet with PlatformIO, for Arduino-IDE we will add in future some extra infos.

Helpful Infos

ISOBUS-Basics

https://de.wikipedia.org/wiki/ISOBUS

ISOBUS open source and documentation

https://github.com/Meisterschulen-am-Ostbahnhof-Munchen https://isobus-plus-plus.readthedocs.io/en/latest/index.html

'pConvert' ISOBUS Test and Simulation Program

(please send me an email for getting the "pConvert lite" version)

Licence

Licensed under the European Union Public License (EUPL)-1.2-or-later

Why licensed under EUPL-1.2: it is compatible to GPL and compatible to EU-rights and regulations

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