source: rtos_arduino/trunk/arduino_lib/libraries/ESP8266/README.md@ 136

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1@mainpage
2
3# WeeESP8266
4
5An ESP8266 library for Arduino providing an easy-to-use way to manipulate ESP8266.
6
7# Source
8
9Source can be download at <https://github.com/itead/ITEADLIB_Arduino_WeeESP8266>.
10
11You can clone it by:
12
13 git clone https://github.com/itead/ITEADLIB_Arduino_WeeESP8266.git
14
15# Documentation
16
17Online API documentation can be reached at <http://docs.iteadstudio.com/ITEADLIB_Arduino_WeeESP8266/index.html>.
18
19Offline API documentation can be found under directory
20[doc](https://github.com/itead/ITEADLIB_Arduino_WeeESP8266/tree/master/doc).
21
22# How to get started
23
24On the home page of API documentation, the tabs of Examples, Classes and Modules
25will be useful for Arduino lovers.
26
27# API List
28
29 bool kick (void) : Verify ESP8266 whether live or not.
30
31 bool restart (void) : Restart ESP8266 by "AT+RST".
32
33 String getVersion (void) : Get the version of AT Command Set.
34
35 bool setOprToStation (void) : Set operation mode to staion.
36
37 bool setOprToSoftAP (void) : Set operation mode to softap.
38
39 bool setOprToStationSoftAP (void) : Set operation mode to station + softap.
40
41 String getAPList (void) : Search available AP list and return it.
42
43 bool joinAP (String ssid, String pwd) : Join in AP.
44
45 bool leaveAP (void) : Leave AP joined before.
46
47 bool setSoftAPParam (String ssid, String pwd, uint8_t chl=7, uint8_t ecn=4) : Set SoftAP parameters.
48
49 String getJoinedDeviceIP (void) : Get the IP list of devices connected to SoftAP.
50
51 String getIPStatus (void) : Get the current status of connection(UDP and TCP).
52
53 String getLocalIP (void) : Get the IP address of ESP8266.
54
55 bool enableMUX (void) : Enable IP MUX(multiple connection mode).
56
57 bool disableMUX (void) : Disable IP MUX(single connection mode).
58
59 bool createTCP (String addr, uint32_t port) : Create TCP connection in single mode.
60
61 bool releaseTCP (void) : Release TCP connection in single mode.
62
63 bool registerUDP (String addr, uint32_t port) : Register UDP port number in single mode.
64
65 bool unregisterUDP (void) : Unregister UDP port number in single mode.
66
67 bool createTCP (uint8_t mux_id, String addr, uint32_t port) : Create TCP connection in multiple mode.
68
69 bool releaseTCP (uint8_t mux_id) : Release TCP connection in multiple mode.
70
71 bool registerUDP (uint8_t mux_id, String addr, uint32_t port) : Register UDP port number in multiple mode.
72
73 bool unregisterUDP (uint8_t mux_id) : Unregister UDP port number in multiple mode.
74
75 bool setTCPServerTimeout (uint32_t timeout=180) : Set the timeout of TCP Server.
76
77 bool startServer (uint32_t port=333) ： Start Server(Only in multiple mode).
78
79 bool stopServer (void) : Stop Server(Only in multiple mode).
80
81 bool startTCPServer (uint32_t port=333) : Start TCP Server(Only in multiple mode).
82
83 bool stopTCPServer (void) : Stop TCP Server(Only in multiple mode).
84
85 bool send (const uint8_t *buffer, uint32_t len) : Send data based on TCP or UDP builded already in single mode.
86
87 bool send (uint8_t mux_id, const uint8_t *buffer, uint32_t len) : Send data based on one of TCP or UDP builded already in multiple mode.
88
89 uint32_t recv (uint8_t *buffer, uint32_t buffer_size, uint32_t timeout=1000) : Receive data from TCP or UDP builded already in single mode.
90
91 uint32_t recv (uint8_t mux_id, uint8_t *buffer, uint32_t buffer_size, uint32_t timeout=1000) : Receive data from one of TCP or UDP builded already in multiple mode.
92
93 uint32_t recv (uint8_t *coming_mux_id, uint8_t *buffer, uint32_t buffer_size, uint32_t timeout=1000) : Receive data from all of TCP or UDP builded already in multiple mode.
94
95
96# Mainboard Requires
97
98 - RAM: not less than 2KBytes
99 - Serial: one serial (HardwareSerial or SoftwareSerial) at least
100
101# Suppported Mainboards
102
103 - Arduino UNO and its derivatives
104 - Arduino MEGA and its derivatives
105 - [Iteaduino UNO](http://imall.iteadstudio.com/im130312001.html)
106 - [WBoard Pro](http://imall.iteadstudio.com/im141125005.html)
107
108# Using SoftwareSerial
109
110If you want to use SoftwareSerial to communicate with ESP8266, you need to modify
111the line in file `ESP8266.h`:
112
113 //#define ESP8266_USE_SOFTWARE_SERIAL
114
115After modification, it should be:
116
117 #define ESP8266_USE_SOFTWARE_SERIAL
118
119
120# Hardware Connection
121
122WeeESP8266 library only needs an uart for hardware connection. All communications
123are done via uart. In each example, you must specify the uart used by mainboard
124to communicate with ESP8266 flashed AT firmware.
125
126## MEGA and WBoard Pro
127
128For MEGA and WBoard Pro, `Serial1` will be used if you create an object (named wifi)
129of class ESP8266 in your code like this:
130
131 #include "ESP8266.h"
132 ESP8266 wifi(Serial1);
133
134The connection should be like these:
135
136 ESP8266_TX->RX1(D19)
137 ESP8266_RX->TX1(D18)
138 ESP8266_CH_PD->3.3V
139 ESP8266_VCC->3.3V
140 ESP8266_GND->GND
141
142## UNO
143
144To use SoftwareSerial, `mySerial` will be used if you create an object (named wifi)
145of class ESP8266 in your code like this:
146
147 #include "ESP8266.h"
148 #include <SoftwareSerial.h>
149
150 SoftwareSerial mySerial(3, 2); /* RX:D3, TX:D2 */
151 ESP8266 wifi(mySerial);
152
153The connection should be like these:
154
155 ESP8266_TX->RX(D3)
156 ESP8266_RX->TX(D2)
157 ESP8266_CH_PD->3.3V
158 ESP8266_VCC->3.3V
159 ESP8266_GND->GND
160
161# Attention
162
163The size of data from ESP8266 is too big for arduino sometimes, so the library can't
164receive the whole buffer because the size of the hardware serial buffer which is
165defined in HardwareSerial.h is too small.
166
167Open the file from `\arduino\hardware\arduino\avr\cores\arduino\HardwareSerial.h`.
168See the follow line in the HardwareSerial.h file.
169
170 #define SERIAL_BUFFER_SIZE 64
171
172The default size of the buffer is 64. Change it into a bigger number, like 256 or more.
173
174
175-------------------------------------------------------------------------------
176
177# The End!
178
179-------------------------------------------------------------------------------
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