Fix #78 Use platformio to build multiple boards

.travis.yml

@@ -1,19 +1,30 @@
-language: c
-before_install:
-  - export ARDUINO_VERSION=1.6.5
-  - "/sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_1.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :1 -ac -screen 0 1280x1024x16"
-  - sleep 3
-  - export DISPLAY=:1.0
-  - wget http://downloads.arduino.cc/arduino-${ARDUINO_VERSION}-linux64.tar.xz
-  - tar xf arduino-${ARDUINO_VERSION}-linux64.tar.xz
-  - sudo mv arduino-${ARDUINO_VERSION} /usr/local/share/arduino
-  - sudo ln -s /usr/local/share/arduino/arduino /usr/local/bin/arduino
+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:
-  - ln -s ${PWD} /usr/local/share/arduino/libraries/ModbusMaster
-  - arduino --pref "compiler.warning_level=all" --save-prefs
-script:
-  - echo $PWD
+  - pip install -U platformio
+
+before_script:
+  - env
   - echo $HOME
+  - echo $TRAVIS_BUILD_DIR
   - ls -al $PWD
-  - source ${TRAVIS_BUILD_DIR}/travis/common.sh
-  - build_examples
+
+script:
+  - make build

Makefile

@@ -0,0 +1,19 @@
+#-------------------------------------------------------------------- settings
+FIND          := find
+DIR           := $(PWD)/examples
+CRITERIA      := \( -name "*.ino" -o -name "*.pde" \)
+EACH_EXAMPLE  := $(FIND) $(DIR) $(CRITERIA) -exec
+BUILD         := platformio ci
+LIB           := .
+
+#--------------------------------------------------------------------- targets
+# update .travis.yml if target boards added
+all: uno due huzzah genuino101 teensy31
+
+uno due huzzah genuino101 teensy31:
+	PLATFORMIO_BOARD=$@ $(MAKE) build
+
+build:
+	$(EACH_EXAMPLE) $(BUILD) --board=$(PLATFORMIO_BOARD) --lib=$(LIB) {} \;
+
+.PHONY: all uno due huzzah genuino101 teensy31 build