language: python

python:
  - 2.7

sudo: false

cache:
  directories:
    - ~/.platformio

# update Makefile if target boards added
env:
  - PLATFORMIO_BOARD=uno
  - PLATFORMIO_BOARD=due
  - PLATFORMIO_BOARD=huzzah
  - PLATFORMIO_BOARD=genuino101
  - PLATFORMIO_BOARD=teensy31

install:
  - pip install -U platformio

before_script:
  - env
  - echo $HOME
  - echo $TRAVIS_BUILD_DIR
  - ls -al $PWD

script:
  - make build