Arduino IDE settings for : Huzzah32

The Huzzah32 Feather board can be programmed using the Arduino IDE.
Here some notes about that.

Development system

• Install Silicon Labs USB to UART bridge 
• Arduino IDE 1.8.10
• Be sure to have installed these boards :
• Adafruit AVR Boards (1.4.13)
• Adafruit SAMD boards (1.5.7)
• Manually install EspressIf Arduino Esp32
• Be sure to have installed these libraries :
• ArduinoBLE (1.1.2)
• Adafruit GFX Library  (1.6.1)
• Adafruit SSD1306 (2.0.2)
• In the preferences have these additional URLs :
• https://dl.espressif.com/dl/package_esp32_index.json
• https://www.adafruit.com/package_adafruit_index.json
• In the Tools setting :
• select board : 
• Adafruit ESP32 Feather
• Upload speed : 921200
• Port /dev/ttyUSB0  (or the USB port available)
• Programmer : USBtinyISP