# Wio Terminal OS ## Prerequisites Install [`arduino-cli`](https://github.com/arduino/arduino-cli). ## Setup Update the local indexes: ```bash $ arduino-cli core update-index ``` Connect the Wio Terminal and ensure it shows up: ```bash $ arduino-cli board list Port Protocol Type Board Name FQBN Core /dev/ttyACM0 serial Serial Port (USB) Seeeduino Wio Terminal Seeeduino:samd:seeed_wio_terminal Seeeduino:samd ``` Compile the sketch: ```bash $ arduino-cli compile --fqbn Seeeduino:samd:seeed_wio_terminal HelloWorld ``` Upload it: ```bash $ arduino-cli upload -p /dev/ttyACM0 --fqbn Seeeduino:samd:seeed_wio_terminal HelloWorld ```