move from travis to github actions

.github/workflows/main.yml

@@ -0,0 +1,26 @@
+name: PlatformIO CI
+
+on: [push, pull_request]
+
+jobs:
+  PlatformIO-Check:
+    runs-on: ubuntu-latest
+    steps:
+      - run: sudo apt-get install python3-setuptools python3-wheel
+      - run: pip3 install platformio
+      - run: echo "$HOME/.local/bin" >> $GITHUB_PATH
+      - uses: actions/checkout@v2
+      - run: platformio check --fail-on-defect low --fail-on-defect medium --fail-on-defect high --skip-packages --flags "--suppress=*:*.pio\* --inline-suppr" -v
+
+  PlatformIO-Build:
+    runs-on: ubuntu-latest
+    steps:
+      - run: sudo apt-get install python3-setuptools python3-wheel
+      - run: pip3 install platformio
+      - run: echo "$HOME/.local/bin" >> $GITHUB_PATH
+      - uses: actions/checkout@v2
+      - run: platformio run
+      - uses: actions/upload-artifact@v2
+        with:
+          name: firmware
+          path: .pio/build/*/firmware.bin

.travis.yml

@@ -1,13 +0,0 @@
-language: python
-python:
-    - "2.7"
-sudo: false
-cache:
-    directories:
-        - "~/.platformio"
-install:
-    - pip install -U platformio
-    - platformio update
-script:
-    - platformio check --fail-on-defect low --fail-on-defect medium --fail-on-defect high
-    - platformio run