ESP8266
The following are daily builds of the ESP8266 firmware. This will work on boards with at least 2MiB of flash. They have the latest features and bug fixes, WebREPL is not automatically started, and debugging is enabled by default.
For boards with 1MiB or 512kiB of flash, two variants are provided with reduced functionality. The 1MiB variant removes asyncio and FAT-filesystem support as well as some modules from micropython-lib. The 512kiB variant further removes all filesystem support, as well as framebuffer support, some Python language features, and has less detailed error messages.
Note: v1.12-334 and newer (including v1.13) require an ESP8266 module with
2MiB of flash or more, and use littlefs as the filesystem by default. When
upgrading from older firmware please backup your files first, and either
erase all flash before upgrading, or after upgrading execute
vfs.VfsLfs2.mkfs(bdev).
Installation instructions
Program your board using the esptool.py program as described the tutorial.
Firmware
Releases
Preview builds
(These are automatic builds of the development branch for the next release)
Firmware (512kiB flash)
Releases
Preview builds
(These are automatic builds of the development branch for the next release)
Firmware (2MiB flash with ROMFS)
Releases
Preview builds
(These are automatic builds of the development branch for the next release)
Firmware (1MiB flash)
Releases
Preview builds
(These are automatic builds of the development branch for the next release)