查看“Microduino-WIFI(ESP)”的源代码

{{Language|Microduino-WiFi(ESP)}}
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[[file:Microduino-8266-rect.jpg|400px|thumb|right|Microduino-ESP]]
Microduino-WiFi (ESP) module is a WiFi communication module, through the serial port 
Transmission data to Core / Core + / CoreUSB core module  for communication, you can 
connect other WiFi devices.

==Features==
*Serial Communications；
*It can be connected to the Internet；
*Small, cheap, stack, open source；

==Specifications==
*Forms of communication: Serial passthrough, the default port for the D2 (RX), D3 (TX);
*Power supply：+3.3VDC 50mA；
*Status indicator;

==Common AT commands==
*All AT commands are end with "\ r \ n". When the AT command debug please pay 

attention to select "\ r \ n".

*Common AT commands：
**AT+RST   Restart module
**AT+GMR  Check the version information
**AT+CWMODE=3   station and access point
***1 Station Mode
***2 AP Mode
***3 AP and Station

**AT+CWLAP   wifi ssid List

**AT+CWSMARTSTART=0   enable smart configer
***0: use 安信可 AI-LINK technology
***1: use ESP-TOUCH technology
***2: use AIR-KISS

**AT+CWSMARTSTOP    stop smart configer

**AT+CWJAP="<access_point_name>","<password>"   join a WiFi

**AT+CIFSR    show wifi infomation

**AT+CIPSTATUS Get the connection status

**AT+CIPSTART=4,"TCP","baidu.com",80   Establishes a TCP or UDP connection, port.

**AT+CIPCLOSE    Close connection TCP or UDP (single-link)

**AT+CIPCLOSE=5  Close multiple connections

**AT+CIPMUX=1   Start multiple connections

==Documents==
Support AT command configuration control：'''[[File:ESP8266_WiFi_Module_Quick_Start_Guide_v_1.0.4.pdf]]'''

==Development==


*Test program

Use Microduino IDE-->example-->_03_microduino_WiFi_ESP8266-->HTTPGET 

program test is OK.
[[File:ESP8266-exampleCode.jpg|thumb|600px|center]]

We have set SSID (wifi name) and pass (password) places in the code, change your wifi 

password

*Download program
**Stack together with Microduino-WiFi(ESP), Microduino-Core+ and Microduino-USBttl, 

insert USB line into the Microduino-USBttl, other side of USB line insert into computer, 

start Arduino IDE, The above program is copied to the IDE, the tool (tools) -> Board 

(Board) is selected Microduino Core, and the tools (tools) -> Serial Port (Serial) select the 

corresponding serial number. After clicking the top left corner IDE √ button to compile 

the program, after the end of the compilation click -> button is programmed to the board;

*Open the serial monitor, set：“\r\n”、“115200 baud”.
*First of prompts is to show connect WiFi successful information
*If you see the following description you already visited Baidu Home website.
[[File:ESP8266WiFi-exampleCode1.png|600px|center|thumb|Serial]]


*Pin Description

:[[file:Microduino-WiFi(ESP)-1Big2.jpg|800px|thumb|center|Microduino-WiFi(ESP)]]
<br style="clear: left"/>

==Application==
'''Related Applications：'''
[[WiFi Weather Stations]]

==Firmware programming instructions==
1：welds point marked "down", or use wire to connect GND and GPIO0(written on the 

back of the board of the vias 0)
2：Recommend use USBTTL transfer serial  directly, you need connect four wires to 

transfer serail port.
{| class="wikitable"
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! WIFI(ESP) !! USBTTL
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| D2 || D1（TX1）
|-
| D3 || D0（RX0）
|-
| 3V3 || 3V3
|-
| GND || GND
|}
If you use the core module programming firmware, please do the serial converter with 

Core+ module, can not use Core, because WIFI (ESP) serial port is (D2, D3) pin 115200 

baud rate, the corresponding Core is soft serial port, baud rate less than 115200.
The USBTTL, Core+ stack, download the program to the Core+ module.
<source lang="cpp">
#define my_Serial Serial1  //Core+ or CoreUSB

void setup() { 
  Serial.begin(115200); 
  my_Serial.begin(115200);
} 

void loop() { 
  if (Serial.available()) { 
    char c = Serial.read(); 
    my_Serial.write(c); 
  } if (my_Serial.available()) { 
    char c = my_Serial.read(); 
    Serial.write(c); 
  }
}
</source>
soft serial port to hard seral port:[[File:softToHard-V2.rar]]

3：Connect USB, open burn firmware tool, set firmware address update firmware.

Firmware tool software：[[File:ESP8266Flasher.rar]]

Firmware file：[[File:MicroduinoESP8266.rar]]

Connect USB to PC, your firmware tool software will show below:
[[File:Microuino-WiFi(ESP)burnLoarderStep1.png|thumb|600px|center]]

setup as below:

v0.9.5.2 AT Firmware-------------0x00000

Find right firmware file in floder and fill right address
[[File:Microuino-WiFi(ESP)burnLoarderStep2V1.png|thumb|600px|center]]
return operation tab, and click burn
[[File:Microuino-WiFi(ESP)burnLoarderStep2-1.png|thumb|600px|center]]
[[File:Microuino-WiFi(ESP)burnLoarderStep3.jpg|thumb|600px|center]]


4：Open debugging tools, test AT command make sure whether the firmware burn 

successful

5：Finally remove the weld on "down" or disconnect the wire which connect GND and 

GPIO0(written on the 

==Questions==

==Gallery==
[[file:Microduino-WiFi(ESP)-t1.png|thumb|600px|center]]
[[file:Microduino-WiFi(ESP)-b1.png|thumb|600px|center]]
[[file:Microduino-WiFi(ESP)-t.png|thumb|600px|center|Microduino-WiFi(ESP) Front]]
[[file:Microduino-WiFi(ESP)-b.png|thumb|600px|center|Microduino-WiFi(ESP) Back]]
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