Installation instructions for Debian / Ubuntu OS

Install latest Arduino IDE from arduino.cc

Open Terminal and execute the following command (copy->paste and hit enter):

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

Restart Arduino IDE
If you have Arduino.app installed to /Applications/, modify the installation as follows, beginning at mkdir -p ~/Arduino...:

  cd /Applications/Arduino_*/Contents/java/hardware/
  mkdir -p espressif && \
  cd espressif && \
  git clone https://github.com/espressif/arduino-esp32.git esp32 && \
  cd esp32 && \
  git submodule update --init --recursive && \
  cd tools && \
  python2 get.py```