4 stars

Author: hathach

.travis.yml

@@ -20,6 +20,9 @@ install:
   - export PATH=$HOME/arduino_ide:$PATH
   - arduino --pref "boardsmanager.additional.urls=https://adafruit.github.io/arduino-board-index/package_adafruit_index.json" --save-prefs
   - arduino --install-boards adafruit:nrf52
+  # install random lib so the arduino IDE grabs a new library index
+  # see: https://github.com/arduino/Arduino/issues/3535  
+  - arduino --install-library USBHost
   - arduino --install-library "Adafruit GFX","Adafruit NeoPixel"
 
 before_script: