ESP8266 driver using the NodeMCU interface
Dependencies: BufferedSerial
Dependents: esp8266_nodeMCU1 esp8266_2_thingspeak1 Solarator_0-0-2 IoTBurglar_and_Fire_AlarmSystem ... more
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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)
WiflyInterface.cpp
- Committer:
- michaeljkoster
- Date:
- 2014-10-08
- Revision:
- 12:c5f0eac67a8a
- Parent:
- 1:fb4494783863
File content as of revision 12:c5f0eac67a8a:
#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; }