ESP8266 / ESP8266NodeMCUInterface

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 ESP8266

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)

Diff: ESP8266/ESP8266.h

Revision:
31:fd0eaf273b11
Parent:
30:c035696b9397
Child:
32:cf071dc33972
--- a/ESP8266/ESP8266.h	Wed Apr 29 22:43:03 2015 +0000
+++ b/ESP8266/ESP8266.h	Thu Apr 30 04:53:21 2015 +0000
@@ -94,7 +94,7 @@
     * @param ip A string that contains the IP, no quotes
     * @param port Numerical port number to connect to
     */
-    bool ESP8266::startUDP(char* ip, int port);
+    bool startUDP(char* ip, int port);
 
     /**
     * Close a connection
@@ -111,7 +111,7 @@
 
     /**
     * Return the IP address from host name
-    * @return IP address as a string
+    * @return true on success, false on failure
     */    bool gethostbyname(const char * host, char * ip);
 
     /**