所有发布的固件都是社区编译，都经过了测试，保证是可以运行的，不会出现官方下载中某些固件（机器自动编译）不能运行的情况。
Githubgithub.com
shaoziyang/MicroPython_firmwareMicroPython_firmware - MicroPython firmware for Various development board can run micropython.
oschina镜像https://git.oschina.net/shaoziyang/MicroPython_firmware
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