Arduino

Arduino

• #sudo dnf install python3-pyserial
• #sudo chmod a+rw /dev/ttyUSB0

• #sudo usermod -a -G dialout

• download the binary from arduino

  • https://downloads.arduino.cc/arduino-cli/arduino-cli_latest_Linux_64bit.tar.gz

  • Put the binary in your path (~/.local/bin)

    arduino-cli config init
    arduino-cli config set board_manager.additional_urls "https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json"
    arduino-cli config set library.enable_unsafe_install true
    
    arduino-cli core update-index
    arduino-cli core install esp32:esp32
    
    # Optional libraries
    arduino-cli lib install "ESP8266 Influxdb" # send tcp data packets to influx/grafana
    arduino-cli lib install "PID" # Reference PID controller for arduino
    arduino-cli lib install "Adafruit BME280 Library" # Temp/Press/Humidity sensor
    arduino-cli lib install "DallasTemperature" # Temperature sensor
    arduino-cli lib install "HX711 Arduino Library" # Load cell library to make scales
    

To make a new project

Arduino is a bit bojank. The directory structure is tied to the .arduino directory created with the config created above. The files must be stored with the following names:

• project name sketch-name
• path must be ~/Arduino/sketch-name/sketch-name.ino

• main script must be named sketch-name.ino This directory structure is required for compile and upload below. To set up the directories automatically use arduino-cli sketch new blink

  const int LED_BUILTIN = 2;
  void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  }
  void loop() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000);
  digitalWrite(LED_BUILTIN, LOW);
  delay(1000);
  }
  

Complile the project

arduino-cli compile -b esp32:esp32:esp32 ~/Arduino/blink

Upload to the device

arduino-cli upload -p /dev/ttyUSB0 -b esp32:esp32:esp32 ~/Arduino/blink