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: Socket/Socket.cpp

Revision:
36:e1545c6c2cb3
Parent:
28:91e65e22e63a
Child:
40:0a83315aea0a
--- a/Socket/Socket.cpp	Thu Apr 30 21:09:14 2015 +0000
+++ b/Socket/Socket.cpp	Sat May 02 03:30:52 2015 +0000
@@ -19,16 +19,32 @@
 #include "Socket.h"
 #include <cstring>
 
+//Debug is disabled by default
+#if 1
+//Enable debug
+#include <cstdio>
+#define DBG(x, ...) std::printf("[Socket : DBG]"x" [%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__); 
+#define WARN(x, ...) std::printf("[Socket : WARN]"x" [%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__); 
+#define ERR(x, ...) std::printf("[Socket : ERR]"x" [%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__); 
+
+#else
+//Disable debug
+#define DBG(x, ...) 
+#define WARN(x, ...)
+#define ERR(x, ...) 
+
+#endif
+
 extern Serial pc;
 
 Socket::Socket() : _blocking(true), _timeout(1500) {
     wifi = ESP8266::getInstance();
     if (wifi == NULL)
-        error("Socket constructor error: no ESP8266 instance available!\r\n");
+        ERR("Socket constructor error: no ESP8266 instance available!");
 }
 
 void Socket::set_blocking(bool blocking, unsigned int timeout) {
-    printf("set blocking: %d %d\r\n", blocking, timeout);
+    DBG("set blocking: %d %d", blocking, timeout);
     _blocking = blocking;
     _timeout = timeout;
 }