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@48:6031f70e3914, 2015-06-04 (annotated)

Committer:
geky
Date:
Thu Jun 04 20:45:00 2015 +0000
Revision:
48:6031f70e3914
Parent:
44:16da10e7b3f7 
Fix for not using full buffer in TCP recieve

Who changed what in which revision?

UserRevisionLine numberNew contents of line
michaeljkoster 13:41098c907200 1 #include "ESP8266Interface.h"
samux 1:fb4494783863 2
geky 44:16da10e7b3f7 3 ESP8266Interface::ESP8266Interface(PinName tx, PinName rx, PinName reset,
geky 44:16da10e7b3f7 4 int baud, int timeout) :
geky 44:16da10e7b3f7 5 ESP8266(tx, rx, reset, baud, timeout) {
samux 1:fb4494783863 6 }
samux 1:fb4494783863 7
geky 44:16da10e7b3f7 8 bool ESP8266Interface::init() {
geky 44:16da10e7b3f7 9 return ESP8266::init();
samux 1:fb4494783863 10 }
samux 1:fb4494783863 11
geky 44:16da10e7b3f7 12 bool ESP8266Interface::connect(const char * ssid, const char * phrase) {
geky 44:16da10e7b3f7 13 return ESP8266::connect(ssid, phrase);
samux 1:fb4494783863 14 }
samux 1:fb4494783863 15
geky 44:16da10e7b3f7 16 int ESP8266Interface::disconnect() {
michaeljkoster 13:41098c907200 17 return ESP8266::disconnect();
samux 1:fb4494783863 18 }
samux 1:fb4494783863 19
geky 44:16da10e7b3f7 20 const char *ESP8266Interface::getIPAddress() {
michaeljkoster 14:4d1128f72e00 21 return ESP8266::getIPAddress();
samux 1:fb4494783863 22 }