Difference between revisions of "ESP8266"

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[[Image:esp.png|200px|thumb|right| Carte ESP8266 ]]
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[[Image:esp8266mod.jpg|200px|thumb|right| Carte ESP8266 Mod]]
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[[Image:esp8266-module12.png|200px|thumb|right| Carte ESP8266 Module 12]]
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[[Image:esp8266-module12e.png|200px|thumb|right| Carte ESP8266 Module 12 Arduino]]
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[[Image:esp8266-arduinoide-config.png|200px|thumb|right|Configuration IDE Arduino pour ESP8266 Mod]]
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L' ESP8266 est un module Wifi très peu cher (5 USD) accessible par ligne série (https://espressif.com/en/products/esp8266/).
 
L' ESP8266 est un module Wifi très peu cher (5 USD) accessible par ligne série (https://espressif.com/en/products/esp8266/).
 
Parmi les caractéristiques
 
Parmi les caractéristiques
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Le support récent dans un gcc modifié (http://hackaday.com/2014/10/02/gcc-for-the-esp8266-wifi-module/) permettra d'utiliser ce module de facon autonome.
 
Le support récent dans un gcc modifié (http://hackaday.com/2014/10/02/gcc-for-the-esp8266-wifi-module/) permettra d'utiliser ce module de facon autonome.
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* Firmware permettant la programmation en langage Lua: [http://www.nodemcu.com/ nodemcu]
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* Tutorial utilisant le firmware '''nodemcu''' pour réaliser capteur avec une interface web: [http://importhack.wordpress.com/2014/11/22/how-to-use-ep8266-esp-01-as-a-sensor-web-client/ ici].
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* [http://www.arduinesp.com/ Getting started with arduino ESP8266]
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=Programmation=
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==C==
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* [IDE Arduino + Addon https://learn.sparkfun.com/tutorials/esp8266-thing-hookup-guide/installing-the-esp8266-arduino-addon]
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==Lua==
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==Python==
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* [[Python sur ESP8266]]
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=ESP8266 @ AIR=
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* [[Python sur ESP8266]]
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=Outils=
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==ESPTool==
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https://github.com/themadinventor/esptool
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''A cute Python utility to communicate with the ROM bootloader in Espressif ESP8266. It is intended to be a simple, platform independent, open source replacement for XTCOM.''
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<pre>
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git clone https://github.com/themadinventor/esptool.git
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cd esptool/
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sudo ln -s /dev/tty.wch\ ch341\ USB\=\>RS232\ 1450 /dev/tty.USB0
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./esptool.py -h
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usage: esptool [-h] [--port PORT] [--baud BAUD]
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{load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash,verify_flash,erase_flash}
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...
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ESP8266 ROM Bootloader Utility
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positional arguments:
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{load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash,verify_flash,erase_flash}
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Run esptool {command} -h for additional help
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load_ram Download an image to RAM and execute
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dump_mem Dump arbitrary memory to disk
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read_mem Read arbitrary memory location
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write_mem Read-modify-write to arbitrary memory location
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write_flash Write a binary blob to flash
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run Run application code in flash
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image_info Dump headers from an application image
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make_image Create an application image from binary files
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elf2image Create an application image from ELF file
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read_mac Read MAC address from OTP ROM
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chip_id Read Chip ID from OTP ROM
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flash_id Read SPI flash manufacturer and device ID
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read_flash Read SPI flash content
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verify_flash Verify a binary blob against flash
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erase_flash Perform Chip Erase on SPI flash
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optional arguments:
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-h, --help show this help message and exit
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--port PORT, -p PORT Serial port device
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--baud BAUD, -b BAUD Serial port baud rate
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./esptool.py -b 115200 -p /dev/tty.USB0 flash_id
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Connecting...
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Manufacturer: e0
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Device: 4016
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./esptool.py -b 115200 -p /dev/tty.USB0 chip_id
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Connecting...
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Chip ID: 0x000befb3
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./esptool.py -b 115200 -p /dev/tty.USB0 read_mac
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Connecting...
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MAC: 5c:cf:7f:0b:ef:b3
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</pre>
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=Liens=
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* Brochage http://zeflo.com/wp-content/uploads/2014/09/esp8266_pinout_h-569x236.png
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* http://www.seeedstudio.com/wiki/WiFi_Serial_Transceiver_Module
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* http://forum.arduino.cc/index.php?topic=267564.0
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* http://www.instructables.com/id/ESP8266-Wifi-Temperature-Logger/
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* http://www.esp8266.com/wiki/doku.php?id=esp8266-module-family
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=Exemple de code pour [[Arduino]]=
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Réécrit à partir de http://www.seeedstudio.com/wiki/WiFi_Serial_Transceiver_Module
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<pre>
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</pre>
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=Exemple de code pour [[STM32 Nucleo]]=
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TODO

Latest revision as of 15:34, 11 April 2016

Carte ESP8266
Carte ESP8266 Mod
Carte ESP8266 Module 12
Carte ESP8266 Module 12 Arduino
Configuration IDE Arduino pour ESP8266 Mod

L' ESP8266 est un module Wifi très peu cher (5 USD) accessible par ligne série (https://espressif.com/en/products/esp8266/). Parmi les caractéristiques

  • 802.11 b/g/n
  • Wi-Fi Direct (P2P), soft-AP
  • Integrated TCP/IP protocol stack
  • Integrated low power 32-bit CPU could be used as application processor (80Mhz)
  • SDIO 1.1/2.0, SPI, UART

Dans une utilisation simple, d'apporter une connectivité wifi par ligne série à tout équipement notamment les cartes à base de microcontrolleur comme: Arduino, Nucleo...

Le support récent dans un gcc modifié (http://hackaday.com/2014/10/02/gcc-for-the-esp8266-wifi-module/) permettra d'utiliser ce module de facon autonome.

Programmation

C

Lua

Python

ESP8266 @ AIR


Outils

ESPTool

https://github.com/themadinventor/esptool

A cute Python utility to communicate with the ROM bootloader in Espressif ESP8266. It is intended to be a simple, platform independent, open source replacement for XTCOM.

git clone https://github.com/themadinventor/esptool.git
cd esptool/
sudo ln -s /dev/tty.wch\ ch341\ USB\=\>RS232\ 1450 /dev/tty.USB0

./esptool.py -h
usage: esptool [-h] [--port PORT] [--baud BAUD]
               
               {load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash,verify_flash,erase_flash}
               ...

ESP8266 ROM Bootloader Utility

positional arguments:
  {load_ram,dump_mem,read_mem,write_mem,write_flash,run,image_info,make_image,elf2image,read_mac,chip_id,flash_id,read_flash,verify_flash,erase_flash}
                        Run esptool {command} -h for additional help
    load_ram            Download an image to RAM and execute
    dump_mem            Dump arbitrary memory to disk
    read_mem            Read arbitrary memory location
    write_mem           Read-modify-write to arbitrary memory location
    write_flash         Write a binary blob to flash
    run                 Run application code in flash
    image_info          Dump headers from an application image
    make_image          Create an application image from binary files
    elf2image           Create an application image from ELF file
    read_mac            Read MAC address from OTP ROM
    chip_id             Read Chip ID from OTP ROM
    flash_id            Read SPI flash manufacturer and device ID
    read_flash          Read SPI flash content
    verify_flash        Verify a binary blob against flash
    erase_flash         Perform Chip Erase on SPI flash

optional arguments:
  -h, --help            show this help message and exit
  --port PORT, -p PORT  Serial port device
  --baud BAUD, -b BAUD  Serial port baud rate


./esptool.py -b 115200 -p /dev/tty.USB0 flash_id
  Connecting...
  Manufacturer: e0
  Device: 4016


./esptool.py -b 115200 -p /dev/tty.USB0 chip_id
  Connecting...
  Chip ID: 0x000befb3


./esptool.py -b 115200 -p /dev/tty.USB0 read_mac
  Connecting...
  MAC: 5c:cf:7f:0b:ef:b3

Liens

Exemple de code pour Arduino

Réécrit à partir de http://www.seeedstudio.com/wiki/WiFi_Serial_Transceiver_Module



Exemple de code pour STM32 Nucleo

TODO