Installation instructions for Mac OS ===================================== - Install latest Arduino IDE from [arduino.cc](https://www.arduino.cc/en/Main/Software) - Open Terminal and execute the following command (copy->paste and hit enter): ```bash mkdir -p ~/Documents/Arduino/hardware/espressif && \ cd ~/Documents/Arduino/hardware/espressif && \ git clone https://github.com/espressif/arduino-esp32.git esp32 && \ cd esp32 && \ git submodule update --init --recursive && \ cd tools && \ python get.py ``` Where `~/Documents/Arduino` represents your sketch book location as per "Arduino" > "Preferences" > "Sketchbook location" (in the IDE once started). Adjust the command above accordingly if necessary!   - If you get the error below. Install the command line dev tools with xcode-select --install and try the command above again: ```xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun``` ```xcode-select --install``` - Restart Arduino IDE