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An Arduino WiFi Shield based around the Espressif ESP8266 WiFi SoC.

sparkfun/ESP8266_WiFi_Shield

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README.md

SparkFun ESP8266 WiFi Shield

The SparkFun ESP8266 WiFi Shield is essentially an Arduino shield for the ESP8266 WiFi SoC. The ESP8266 ships with a slightly customized version of the Espressif AT command set.

The ESP8266 is controlled by serial AT commands. The shield is equipped with a switch to swap between a software serial port or hardware serial port interface.

• /Firmware — Firmware flashed on the ESP8266 WiFi Shield (requires ESP8266 SDK 1.2.0)
• /Hardware — Eagle design files (.brd, .sch)
• /Production — Production panel files (.brd)

This product is open source!

The hardware is released under Creative Commons ShareAlike 4.0 International.

The code is beerware; if you see me (or any other SparkFun employee) at the local, and you’ve found our code helpful, please buy us a round!

Please use, reuse, and modify these files as you see fit. Please maintain attribution to SparkFun Electronics and release anyWiFi Shield derivative under the same license.

Distributed as-is; no warranty is given.

About

An Arduino WiFi Shield based around the Espressif ESP8266 WiFi SoC.

Источник

Arduino ESP8266 WiFi Shield

This is a common ESP8266 Arduino shield with the following markings:

Designed in Beijing P.R.China 

Moer info $ tech support Please go to elecshop.ml 

Arduino ESP8266 WiFi Shield Version 1.0 by WangTongze 

The voltage switching circuitry on this shield doesn’t work properly as it arrives, so you’ll have to modify it slightly if you intend it to work as a shield (with SW1 and SW2 set to ON ).

Switch	Function
SW1	Connect ESP8266 TX to pin D0
SW2	Connect ESP8266 RX to pin D1
SW3	Enable bootloader mode
SW4	Use DFU LED to show serial activity (?)

Power is drawn from the 5v pin (not Vin ) so if connecting to Pixl.js ensure that Vin and 5V are shorted on the solder jumper unless you plan to power the shield separately.

Using as-is

• Ensure SW1 and SW2 are OFF
• Connect a jumper lead from the TXD pin on Debug Port to D0 on the Arduino header
• Connect a jumper lead from the RXD pin on Debug Port to D1 on the Arduino header

Rewiring

• Unsolder all the surface mount components to the right-hand side of the ESP8266
• Short across the two transistor outlines from the right pad to the bottom-left pad
• Ensure SW1 and SW2 are ON
• TXD and RXD should now be available on D0 and D1 at 3.3v levels

Pixl.js

If connecting to Pixl.js you should be aware that when if Pixl.js detects a connection on D0 at boot, it’ll start using Serial1 as a console device rather than the LCD.

To avoid this you’ll need to explicitly set the console back to the LCD at boot time:

Software

Note: your module may not come with ESP8266 AT firmware installed. To fix this, see the the ESP8266 page. If you’re using Pixl.js you can now update the firmware on the ESP8266 module via the Flasher section of the Web IDE.

Client

To connect to a WiFi access point.

var WIFI_NAME = "WiFi_Name"; var WIFI_PASS = "WPA2_Key"; var wifi; function getPage() < require("http").get("http://www.pur3.co.uk/hello.txt", function(res) < console.log("Response: ",res); res.on('data', function(d) < console.log("--->"+d); >); >); > function go() < Serial1.setup(115200,); wifi = require("ESP8266WiFi_0v25").connect(Serial1, function(err) < if (err) throw err; console.log("Connecting to WiFi"); wifi.connect(WIFI_NAME, WIFI_PASS, function(err) < if (err) throw err; console.log("Connected"); // Now you can do something, like an HTTP request getPage(); >); >); > 

Access point

To set up as an access point called ESP123 with password HelloWorld that serves up a webpage on address 192.168.4.1 :

var wifi; function pageHandler(req, res) < res.writeHead(200); res.end("Hello World"); >function go() < Serial1.setup(115200,); wifi = require("ESP8266WiFi_0v25").connect(Serial1, function(err) < if (err) throw err; console.log("Connecting to WiFi"); wifi.createAP("ESP123","HelloWorld",5,"wpa2_psk", function(err) < if (err) throw err; console.log("Connected!"); require("http").createServer(pageHandler).listen(80); >); >); > 

See the ESP8266 page for more information on how to use the ESP8266, and the Internet page for more examples of things you can do on Espruino with an Internet connection.

Buying

This page is auto-generated from GitHub. If you see any mistakes or have suggestions, please let us know.

© 2017 Pur3 Ltd (Printable Version) π

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Arduino Wi-Fi Shield – плата расширения на базе ESP8266 (ESP-12E)

С помощью этой платы расширения вы сможете использовать ESP8266 совместно с Arduino UNO/Mega. В ней применяется модуль ESP-12E.

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Arduino Wi-Fi Shield — плата расширения на базе ESP8266 (ESP-12E) для Arduino UNO / MEGA

На Arduino Wi-Fi Shield дублированы все выводы Arduino и разведены все выводы ESP8266, так что вы сможете воспользоваться всеми возможностями обоих микроконтроллеров, соединённых через UART. На плату расширения установлен DIP-переключатель и вынесены выводы этого порта, с помощью переключателя устанавливается режим его работы: прошивка ESP8266, прошивка Arduino, соединение между ними.

ESP8266 в составе этой плате может работать и как самостоятельное устройство, обменивающееся данными с Arduino, так и как Wi-Fi модуль, управляемый AT-командами.

Так как микроконтроллеры ESP8266 работают при напряжении 3,3, а большинство Arduino при 5В, на плату установлен преобразователь логических уровней и стабилизатор напряжения на 3,3В. Питание подаётся с основной платы Arduino.

Плата расширения Arduino Wi-Fi Shield оснащена четырьмя светодиодами: индикаторы питания (PWR), обновления прошивки (DFU), работы Wi-Fi в режимах точки доступа (AP) и клиента (STA). Также на ней присутствует кнопка рестарта ESP8266.

Основные достоинства

• Использование всех выводов ESP8266
• Разные режимы работы UART
• Простота работы с ESP8266

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