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:
45:3cfb7406d993
Parent:
44:16da10e7b3f7
Child:
47:04632d22a723
--- a/ESP8266/ESP8266.h	Wed Jun 03 21:44:20 2015 +0000
+++ b/ESP8266/ESP8266.h	Thu Jun 04 19:26:35 2015 +0000
@@ -194,6 +194,13 @@
     bool discardEcho();
     
     /**
+    * Flushes to next prompt
+    *
+    * @return true if successful
+    */
+    bool flush();
+    
+    /**
     * Send part of a command to the wifi module.
     *
     * @param cmd string to be sent
@@ -204,15 +211,6 @@
     bool command(const char *cmd);
     
     /**
-    * Sanitizes and sends payload to wifi module 
-    *
-    * @param data data to send
-    * @param len length of data
-    * @return true if successful
-    */
-    bool payload(const char *data, int len);
-    
-    /**
     * Execute the command sent by command
     *
     * @param resp_buf pointer to buffer to store response from the wifi module