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 48:6031f70e3914, committed 2015-06-04

Comitter:
geky
Date:
Thu Jun 04 20:45:00 2015 +0000
Parent:
47:04632d22a723
Commit message:
Fix for not using full buffer in TCP recieve

Changed in this revision

Socket/TCPSocketConnection.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/Socket/TCPSocketConnection.cpp	Thu Jun 04 20:18:39 2015 +0000
+++ b/Socket/TCPSocketConnection.cpp	Thu Jun 04 20:45:00 2015 +0000
@@ -131,6 +131,17 @@
         ERR("TCPSocketConnection::receive() - _is_connected is false : you cant receive data untill you connect to a socket!");
         return -1;
     }
+    
+    while (wifi->readable() < length)
+        ;
+        
+    if (!wifi->recv(buffer, &length))
+        return -1;
+        
+    return length;
+    
+    
+    /*
     Timer tmr;
     int idx = 0;
     int nb_available = 0;
@@ -196,7 +207,7 @@
     }
     //---
     return (idx == 0) ? -1 : idx;
-
+*/
 //************************ original code below
 //
 //    if (!_blocking) {