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)

ESP8266Interface.cpp@28:91e65e22e63a, 2015-04-28 (annotated)

Committer:
mbedAustin
Date:
Tue Apr 28 18:52:20 2015 +0000
Revision:
28:91e65e22e63a
Parent:
16:3f0efaa57a12
Child:
44:16da10e7b3f7
aquiring IP Address correctly, but not returning it from inner call level. Safety commit before mucking around

Who changed what in which revision?

UserRevisionLine numberNew contents of line
michaeljkoster 13:41098c907200 1 #include "ESP8266Interface.h"
samux 1:fb4494783863 2
michaeljkoster 13:41098c907200 3 ESP8266Interface::ESP8266Interface( PinName tx, PinName rx, PinName reset,
mbedAustin 28:91e65e22e63a 4 const char * ssid, const char * phrase, uint32_t baud ) :
mbedAustin 28:91e65e22e63a 5 ESP8266(tx, rx, reset, ssid, phrase, baud )
samux 1:fb4494783863 6 {
samux 1:fb4494783863 7 }
samux 1:fb4494783863 8
michaeljkoster 13:41098c907200 9 int ESP8266Interface::init()
samux 1:fb4494783863 10 {
michaeljkoster 14:4d1128f72e00 11 ESP8266::reset();
samux 1:fb4494783863 12 return 0;
samux 1:fb4494783863 13 }
samux 1:fb4494783863 14
michaeljkoster 16:3f0efaa57a12 15 bool ESP8266Interface::connect()
samux 1:fb4494783863 16 {
michaeljkoster 16:3f0efaa57a12 17 return ESP8266::connect();
samux 1:fb4494783863 18 }
samux 1:fb4494783863 19
michaeljkoster 13:41098c907200 20 int ESP8266Interface::disconnect()
samux 1:fb4494783863 21 {
michaeljkoster 13:41098c907200 22 return ESP8266::disconnect();
samux 1:fb4494783863 23 }
samux 1:fb4494783863 24
michaeljkoster 13:41098c907200 25 char * ESP8266Interface::getIPAddress()
samux 1:fb4494783863 26 {
michaeljkoster 14:4d1128f72e00 27 return ESP8266::getIPAddress();
samux 1:fb4494783863 28 }