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)

Files at this revision

API Documentation at this revision

Revision 33:727aac1996b8, committed 2015-04-30

Comitter:
mbedAustin
Date:
Thu Apr 30 21:09:14 2015 +0000
Parent:
32:cf071dc33972
Child:
34:7ccda5d68a00
Child:
35:22d30e936e4c
Child:
36:e1545c6c2cb3
Commit message:
Fixed problem TCP.connect() command, the return values were 0/1 when it should have been -1/0 . Tested to work with TCP Test

Changed in this revision

Socket/TCPSocketConnection.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/Socket/TCPSocketConnection.cpp	Thu Apr 30 19:07:37 2015 +0000
+++ b/Socket/TCPSocketConnection.cpp	Thu Apr 30 21:09:14 2015 +0000
@@ -52,8 +52,11 @@
 //    }
 //    _is_connected = true;
     _is_connected = ESP8266->start(ESP_TCP_TYPE,_ipAddress,_port);
-
-    return _is_connected;
+    if(_is_connected) { //success
+        return 0;
+    } else { // fail
+        return -1;
+    }
 }
 
 bool TCPSocketConnection::is_connected(void)