ESP8266 driver using the NodeMCU interface
Dependencies: BufferedSerial
Dependents: esp8266_nodeMCU1 esp8266_2_thingspeak1 Solarator_0-0-2 IoTBurglar_and_Fire_AlarmSystem ... more
Fork of ESP8266Interface by
This is an alternative implementation of the ESP8266 driver that uses the NodeMCU firmware. The NodeMCU firmware provides a slightly larger feature set than the default firmware through a Lua interpreter.
Note
This library is currently in Alpha. It is not feature complete and has some bugs, proceed with caution. Fixes and patches are welcome!
Interface changes
- SSID and passphrase moved out of ESP8266Interface constructor and to ESP8266Interface::connect
- ESP8266Interface constructor provides optional timeout parameter to specify how long to wait for network operations
Note
NodeMCU defaults to a baud rate of 9600 instead of 115200 used by the default firmware.
Firmware
To install the NodeMCU firmware, follow the instructions on the Firmware Update wiki page using the nodemcu_integer_0.9.6-dev_20150406.bin binary at address 0x00000 instead of boot_v1.1.bin and user1.bin.
Since the NodeMCU firmware defaults to a baud rate of 9600, the Serial Passthrough program can be used to get direct access to the Lua interpreter running on the ESP8266.
Status
Working features:
- TCP Client
- UDP Client Transmit (Currently only UDP Server can recieve messages)
- Single Connection at a time
- Station Mode (Connects to AP)
- DNS Lookups
To be implemented:
- TCP Server
- UDP Server
- UDP Client recieve
- Multiple Connections tracked through Lua variables
- AP Mode (Act as access point)
- IPV6 support (Existing issue with NodeMCU)
ESP8266Interface.h
- Committer:
- geky
- Date:
- 2015-06-04
- Revision:
- 48:6031f70e3914
- Parent:
- 44:16da10e7b3f7
File content as of revision 48:6031f70e3914:
/* ESP8266Interface.h */ /* 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. */ #ifndef ESP8266INTERFACE_H_ #define ESP8266INTERFACE_H_ #include "ESP8266.h" #include "Endpoint.h" /** * Interface using ESP8266 to connect to an IP-based network */ class ESP8266Interface: public 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 baud the baudrate of the serial connection * @param timeout the timeout of the serial connection */ ESP8266Interface(PinName tx, PinName rx, PinName reset, int baud = 9600, int timeout = 3000); /** * Initialize the wifi hardware * * @return true if successful */ bool init(); /** * Connect the wifi module to the specified ssid. * * @param ssid ssid of the network * @param phrase WEP, WPA or WPA2 key * @return true if successful */ bool connect(const char *ssid, const char *phrase); /** * Disconnect the ESP8266 module from the access point * * @return true if successful */ int disconnect(); /** Get IP address * * @return Either a pointer to the internally stored IP address or null if not connected */ const char *getIPAddress(); }; #include "UDPSocket.h" #endif /* ESP8266INTERFACE_H_ */