This README assumes that Arduino IDE is already installed in your PC.

Follow the instruction as shown in the link. https://github.com/espressif/arduino-esp32/blob/master/docs/arduino-ide/debian_ubuntu.md ############################# Info from the link ################################### sudo usermod -a -G dialout $USER &&
sudo apt-get install git &&
wget https://bootstrap.pypa.io/get-pip.py &&
sudo python get-pip.py &&
sudo pip install pyserial &&
mkdir -p ~/Arduino/hardware/espressif &&
cd ~/Arduino/hardware/espressif &&
git clone https://github.com/espressif/arduino-esp32.git esp32 &&
cd esp32 &&
git submodule update --init --recursive &&
cd tools &&
python2 get.py ###############################################################################

After installing the esp32 toolchain, open the Arduino IDE and install the dependancies for Autobahn as instructed below.

Sketch->IncludeLibraries->Manage Libraries Select Arduinojson by Benoit Blachon version 5.13.2 (Note that beta 6 version will not work) Select Websocket by Markus sattlet version 2.1.1

git clone https://github.com/codelectron/autobahn-arduino

mkdir -p $HOME/Arduino/libraries/Autobahn/

cp -a autobahn-arduino/src/* $HOME/Arduino/libraries/Autobahn/

Open the .ino file from the Arduino IDE, Configure the Wifi credentials, IP address, port and realm of your Crossbar.io instance and flash it in your esp32 board.

https://github.com/codelectron/autobahn-arduino/tree/master/examples/esp32