micropython/esp8266
Damien George 87c6250b4c esp8266: Add basic pyb.Pin class; supports output mode only. 2015-02-13 22:21:44 +00:00
..
Makefile esp8266: Add basic pyb.Pin class; supports output mode only. 2015-02-13 22:21:44 +00:00
README.md
eagle.rom.addr.v6.ld esp8266: Update ROM address map to vendor SDK 0.9.5. 2015-01-31 00:36:41 +02:00
esp8266.ld
esp_mphal.c stmhal: Make pybstdio usable by other ports, and use it. 2015-02-13 15:04:53 +00:00
esp_mphal.h stmhal: Make pybstdio usable by other ports, and use it. 2015-02-13 15:04:53 +00:00
etshal.h
gccollect.c
gccollect.h
gchelper.s
main.c py: Protect mp_parse and mp_compile with nlr push/pop block. 2015-02-07 18:33:58 +00:00
makeimg.py
modesp.c esp8266: modesp: Add status() function for connection status. 2015-02-05 00:39:02 +02:00
modpyb.c esp8266: Add basic pyb.Pin class; supports output mode only. 2015-02-13 22:21:44 +00:00
modpyb.h esp8266: Add basic pyb.Pin class; supports output mode only. 2015-02-13 22:21:44 +00:00
modpybpin.c esp8266: Add basic pyb.Pin class; supports output mode only. 2015-02-13 22:21:44 +00:00
mpconfigport.h
qstrdefsport.h esp8266: Add basic pyb.Pin class; supports output mode only. 2015-02-13 22:21:44 +00:00
strtoll.c
uart.c
uart.h
uart_register.h
user_config.h

README.md

Micro Python port to ESP8266

This is a port of Micro Python to the Espressif ESP8266 wifi module.

Currently implemented features include:

  • REPL (Python prompt) over UART0.
  • 24k heap RAM available for Python code.
  • Garbage collector, exceptions.
  • Unicode support.
  • Builtin modules: gc, array, collections, io, struct, sys.
  • C long-long type used as bignum implementation (gives 64 signed ints).

Note that floating-point numbers are not supported.

On the TODO list:

  • Wifi support.
  • GPIO support.
  • Internal filesystem using the flash.
  • ...

Build instructions

The tool chain required for the build is the OpenSource ESP SDK, which can be found at https://github.com/pfalcon/esp-open-sdk. Clone this repository and run make in its directory to build and install the SDK locally.

Then, to build Micro Python for the ESP8266, just run:

$ make

This should produce binary images in the build/ subdirectory. To flash them to your ESP8266, use:

$ make deploy

This will use the esptool.py script to download the images. You must have your ESP module in the bootloader, and connected to a serial port on your PC. The default serial port is /dev/ttyACM0. To specify another, use, eg:

$ make PORT=/dev/ttyUSB0 deploy

The images that are built are:

  • firmware.elf-0x00000.bin: to be flashed at 0x00000
  • firmware.elf-0x10000.bin: to be flashed at 0x10000

There is also a combined image, made up of the above 2 binary files with the appropriate padding:

  • firmware-combined.bin: to be flashed at 0x00000