做一个备份
esp8266
digispark    usb驱动
stm32f103    刷写的bootloader    usb驱动

http://arduino.esp8266.com/stable/package_esp8266com_index.json
http://digistump.com/package_digistump_index.json
http://dan.drown.org/stm32duino/package_STM32duino_index.json
https://dl.espressif.com/dl/package_esp32_index.json