micropython/esp8266
Damien George a5d48b1162 esp8266: Add tests/onewire.py as a driver and test code for ds18b20 dev. 2016-03-24 17:35:26 +02:00
..
scripts esp8266: Add support for frozen modules 2015-05-06 22:04:20 +01:00
tests esp8266: Add tests/onewire.py as a driver and test code for ds18b20 dev. 2016-03-24 17:35:26 +02:00
Makefile esp8266: Add onewire helper functions as C module. 2016-03-24 17:33:42 +02:00
README.md esp8266: Update README with the latest features. 2016-03-23 12:08:15 +02:00
eagle.rom.addr.v6.ld esp8266: Add alternative event loop implementation. 2016-03-11 09:13:31 +07:00
esp8266.ld esp8266: Store frozen modules in FlashROM. 2016-03-17 23:06:47 +08:00
esp_mphal.c esp8266: Make mp_hal_delay_us work with new event framework. 2016-03-23 13:01:21 +02:00
esp_mphal.h esp8266/esp_mphal: Add higher-level event polling function. 2016-03-11 09:42:03 +07:00
ets_alt_task.c esp8266/ets_alt_task: Make FIRST_PRIO=0 to cover all task priorities. 2016-03-17 16:28:06 +00:00
ets_alt_task.h esp8266: Add alternative event loop implementation. 2016-03-11 09:13:31 +07:00
etshal.h esp8266/etshal.h: More prototypes of ESP8266 SDK/BootROM functions. 2016-03-05 21:56:32 +02:00
gccollect.c esp8266: Don't gc-collect BSS. 2016-03-08 10:16:06 +07:00
gccollect.h esp8266: Fix garbage collector by hard-coding stack end address. 2015-05-06 14:01:07 +01:00
gchelper.s esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
lexerstr32.c esp8266: Store frozen modules in FlashROM. 2016-03-17 23:06:47 +08:00
main.c esp8266/main: Module to run on boot is "boot", not "main". 2016-03-08 12:37:24 +07:00
makeimg.py esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
modesp.c esp8266: Switch to lwIP built from source. 2016-03-12 11:45:53 +07:00
modmachine.c esp8266: Add basic I2C driver, with init and writeto methods. 2016-03-24 11:17:17 +02:00
modnetwork.c esp8266/modnetwork: Add symbolic names for network interfaces: STA_IF & AP_IF. 2016-03-10 10:44:15 +07:00
modonewire.c esp8266: Add onewire helper functions as C module. 2016-03-24 17:33:42 +02:00
modpyb.c esp8266: Move pyb.freq to machine.freq. 2016-03-09 09:03:59 +07:00
modpyb.h esp8266: Add basic I2C driver, with init and writeto methods. 2016-03-24 11:17:17 +02:00
modpybadc.c py: Change first arg of type.make_new from mp_obj_t to mp_obj_type_t*. 2016-01-11 00:49:27 +00:00
modpybi2c.c esp8266: Implement bit-bang I2C read, and add i2c.readfrom method. 2016-03-24 11:46:05 +02:00
modpybpin.c esp8266: Expose pin object as a public structure for use as C pin API. 2016-03-24 11:07:41 +02:00
modpybrtc.c esp8266: Reset "virtual RTC" on power on. 2016-03-04 16:49:01 +02:00
modpybrtc.h esp8266: Add utime and pyb.RTC 2015-05-13 00:12:54 +01:00
moduos.c esp8266: Add uos module 2015-05-26 22:18:07 +03:00
modutime.c esp8266/modutime: Support float argument to time.sleep(). 2016-03-04 16:52:30 +02:00
mpconfigport.h esp8266: Add onewire helper functions as C module. 2016-03-24 17:33:42 +02:00
qstrdefsport.h esp8266: Add onewire helper functions as C module. 2016-03-24 17:33:42 +02:00
strtoll.c esp8266: Change bignum from mpz to longlong; move some rodata to iram. 2014-11-28 14:58:25 +00:00
uart.c esp8266/uart: Add uart_flush() function. 2016-03-05 22:13:26 +02:00
uart.h esp8266/uart: Add uart_flush() function. 2016-03-05 22:13:26 +02:00
uart_register.h esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
user_config.h esp8266: New port of Micro Python to ESP8266 wifi module. 2014-11-27 20:30:33 +00:00
utils.c esp8266: Add esp.socket class, with ESP-style socket functionality. 2015-05-04 11:48:40 +01:00
utils.h esp8266: Add esp.socket class, with ESP-style socket functionality. 2015-05-04 11:48:40 +01:00

README.md

MicroPython port to ESP8266

This is a highly experimental port of MicroPython for the WiFi modules based on Espressif ESP8266 chip.

WARNING: The port is highly experimental and any APIs are subject to change.

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, esp, network.
  • Arbitrary-precision long integers and 30-bit precision floats.
  • Basic WiFi support.
  • Basic sockets using modlwip.
  • Basic GPIO support.

On the TODO list:

  • Full wifi 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. Make sure to add toolchain bin directory to your PATH.

Add the external dependencies to the MicroPython repository checkout:

$ git submodule update --init

See the README in the repository root for more information about external dependencies.

Then, to build MicroPython for the ESP8266, just run:

$ cd esp8266
$ 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