Update ESP8266.h to increase size of ssid & phrase to Wifi standards of 32 & 64
Fork of ESP8266Interface by
ESP8266/ESP8266.h
- Committer:
- michaeljkoster
- Date:
- 2014-11-30
- Revision:
- 14:4d1128f72e00
- Parent:
- 13:41098c907200
- Child:
- 15:37a7a56a424f
File content as of revision 14:4d1128f72e00:
/* Copyright (C) 2012 mbed.org, MIT License * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software * and associated documentation files (the "Software"), to deal in the Software without restriction, * including without limitation the rights to use, copy, modify, merge, publish, distribute, * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * @section DESCRIPTION * * ESP8266 RN131-C, wifi module * * Datasheet: * * http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Wireless/WiFi/ESP8266-RN-UM.pdf */ #ifndef ESP8266_H #define ESP8266_H #include "mbed.h" #include "CBuffer.h" #define DEFAULT_WAIT_RESP_TIMEOUT 500 /** * The ESP8266 class */ class ESP8266 { public: /** * Constructor * * @param tx mbed pin to use for tx line of Serial interface * @param rx mbed pin to use for rx line of Serial interface * @param reset reset pin of the wifi module () * @param ssid ssid of the network * @param phrase WEP, WPA or WPA2 key */ ESP8266( PinName tx, PinName rx, PinName reset, const char * ssid, const char * phrase ); /** * Connect the wifi module to the ssid contained in the constructor. * * @return true if connected, false otherwise */ bool join(); /** * Disconnect the ESP8266 module from the access point * * @return true if successful */ bool disconnect(); /** * Join to the access point and get DHCP settings * @return true if successful */ bool connect(); /** * Check connection to the access point * @return true if successful */ bool is_connected(); /** * Return the IP address * @return IP address as a string */ char* getIPAddress(); /** * Reset the wifi module */ void reset(); /** * Reboot the wifi module */ bool reboot(); /** * Check if characters are available * * @return number of available characters */ int readable(); /** * Check if characters are available * * @return number of available characters */ int writeable(); /** * Read a character * * @return the character read */ char getc(); /** * Flush the buffer */ void flush(); /** * Write a character * * @param the character which will be written */ int putc(char c); /** * Close a tcp connection * * @return true if successful */ bool close(); /** * Send a string to the wifi module by serial port. This function desactivates the user interrupt handler when a character is received to analyze the response from the wifi module. * Useful to send a command to the module and wait a response. * * * @param str string to be sent * @param len string length * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO") * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL) * * @return true if ACK has been found in the response from the wifi module. False otherwise or if there is no response in 5s. */ int send(const char * str, int len, const char * ACK = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT); /** * Send a command to the wify module. Check if the module is in command mode. If not enter in command mode * * @param str string to be sent * @param ACK string which must be acknowledge by the wifi module. If ACK == NULL, no string has to be acknoledged. (default: "NO") * @param res this field will contain the response from the wifi module, result of a command sent. This field is available only if ACK = "NO" AND res != NULL (default: NULL) * * @return true if successful */ bool sendCommand(const char * cmd, const char * ack = NULL, char * res = NULL, int timeout = DEFAULT_WAIT_RESP_TIMEOUT); bool gethostbyname(const char * host, char * ip); static ESP8266 * getInstance() { return inst; }; protected: Serial wifi; DigitalOut reset_pin; char phrase[30]; char ssid[30]; char ipString[20]; CircBuffer<char> buf_ESP8266; static ESP8266 * inst; void attach_rx(bool null); void handler_rx(void); typedef struct STATE { bool associated; } State; State state; }; #endif