EV3Dev-USB-Connection (WIP)
Control the EV3 Brick installed with ev3dev over an USB Client-Server-Connection.
Windows Version
The code in this repository is inspired by the repository https://github.com/lichiukenneth/EV3Dev-Python-Socket-Connection, which provides an client server socket connection application, that can be controlled via Windows Forms.
Linux Version
However, this repository contains the code for establishing a client-server socket connection between a Linux computer and the EV3 (as client).
Note
The repository contains only the instructions for establishing a connection via USB. The connection setup via Wifi and Bluetooth can be read via the official website (https://www.ev3dev.org/docs/tutorials/ or https://github.com/lichiukenneth/EV3Dev-Python-Socket-Connection).
Prerequisites
- EV3 Brick
- USB cable (EV3 <-> PC connection)
- Ubuntu LTS 20.04 (only tested on this)
- Python 3 installed
- flashed SD card with the ev3dev OS (https://www.ev3dev.org/downloads/)
- a sensor or motor for testing
Getting Started
Setup
- Boot the EV3 computer with the ev3dev OS installed on an SD card. (tested with ev3dev-stretch-ev3-generic-2020-04-10). Instructions: https://www.ev3dev.org/docs/getting-started/)
- connect the EV3 brick with your linux computer
Verify the connection
- On the EV3 Brick the menu item Gadget can be activated via the menu: Wireless and Networks > Tethering. Afterwards the IP address of the EV3 can be queried in the same menu level in the menu item Network Info.
- Open the terimal (Ctrl+Alt+T) and type in
lsusb. Among other things, the following entry should appear in the response:Lego Group Mindstorms EV3 - On the Linux computer, you can find out the IP address of your Linux computer by typing
ifconfig. (The IP address range should be similar to the one on the EV3).
Development
For development, Visual Studio Code with the ev3dev-browser extension is recommended, which is used to easily deploy the created scripts to the EV3.
... => Work in progress