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: WiflyInterface.cpp

Revision:
13:41098c907200
Parent:
12:c5f0eac67a8a
Child:
14:4d1128f72e00
--- a/WiflyInterface.cpp	Wed Oct 08 19:57:58 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,62 +0,0 @@
-#include "WiflyInterface.h"
-
-WiflyInterface::WiflyInterface( PinName tx, PinName rx, PinName reset, PinName tcp_status,
-                                const char * ssid, const char * phrase, Security sec) :
-    Wifly(tx, rx, reset, tcp_status, ssid, phrase, sec)
-{
-    ip_set = false;
-}
-
-int WiflyInterface::init()
-{
-    state.dhcp = true;
-    reset();
-    return 0;
-}
-
-int WiflyInterface::init(const char* ip, const char* mask, const char* gateway)
-{
-    state.dhcp = false;
-    this->ip = ip;
-    strcpy(ip_string, ip);
-    ip_set = true;
-    this->netmask = mask;
-    this->gateway = gateway;
-    reset();
-
-    return 0;
-}
-
-int WiflyInterface::connect()
-{
-    return join();
-}
-
-int WiflyInterface::disconnect()
-{
-    return Wifly::disconnect();
-}
-
-char * WiflyInterface::getIPAddress()
-{
-    char * match = 0;
-    if (!ip_set) {
-        if (!sendCommand("get ip a\r\n", NULL, ip_string))
-            return NULL;
-        exit();
-        flush();
-        match = strstr(ip_string, "<");
-        if (match != NULL) {
-            *match = '\0';
-        }
-        if (strlen(ip_string) < 6) {
-            match = strstr(ip_string, ">");
-            if (match != NULL) {
-                int len = strlen(match + 1);
-                memcpy(ip_string, match + 1, len);
-            }
-        }
-        ip_set = true;
-    }
-    return ip_string;
-}
\ No newline at end of file