Arduino: Preference Board Tambahan

https://arduino.esp8266.com/stable/package_esp8266com_index.json
https://espressif.github.io/arduino-esp32/package_esp32_index.json
https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json
https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
http://digistump.com/package_digistump_index.json
https://adafruit.github.io/arduino-board-index/package_adafruit_index.json
https://files.seeedstudio.com/arduino/package_seeeduino_boards_index.json
https://raw.githubusercontent.com/sparkfun/Arduino_Boards/master/IDE_Board_Manager/package_sparkfun_index.json
https://www.pjrc.com/teensy/package_teensy_index.json