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/Endpoint.cpp

Revision:
13:41098c907200
Parent:
1:fb4494783863
Child:
16:3f0efaa57a12
--- a/Socket/Endpoint.cpp	Wed Oct 08 19:57:58 2014 +0000
+++ b/Socket/Endpoint.cpp	Sun Nov 30 21:14:09 2014 +0000
@@ -22,9 +22,9 @@
 using std::memset;
 
 Endpoint::Endpoint()  {
-    wifly = Wifly::getInstance();
-    if (wifly == NULL)
-        error("Endpoint constructor error: no wifly instance available!\r\n");
+    ESP8266 = ESP8266::getInstance();
+    if (ESP8266 == NULL)
+        error("Endpoint constructor error: no ESP8266 instance available!\r\n");
     reset_address();
 }
 Endpoint::~Endpoint() {}
@@ -36,7 +36,7 @@
 
 int Endpoint::set_address(const char* host, const int port) {
     //Resolve DNS address or populate hard-coded IP address
-    wifly->gethostbyname(host, _ipAddress);
+    ESP8266->gethostbyname(host, _ipAddress);
     _port = port;
     return 0;
 }