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
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)
Revision 20:d764237405c2, committed 2014-12-01
- Comitter:
- michaeljkoster
- Date:
- Mon Dec 01 09:28:02 2014 +0000
- Parent:
- 19:fb8d5bff2076
- Child:
- 21:690526f05fe6
- Commit message:
- cleanup
Changed in this revision
ESP8266/ESP8266.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/ESP8266/ESP8266.cpp Mon Dec 01 08:56:54 2014 +0000 +++ b/ESP8266/ESP8266.cpp Mon Dec 01 09:28:02 2014 +0000 @@ -66,7 +66,6 @@ attach_rx(false); wifi.baud(9600); // initial baud rate of the ESP8266 - pc.printf("ESP8266 test\r\n"); } bool ESP8266::join() @@ -173,7 +172,7 @@ while (wifi.readable()){ c=wifi.getc(); buf_ESP8266.queue(c); - pc.printf("%c",c); + pc.printf("%c",c); //debug echo } } @@ -205,7 +204,7 @@ int ESP8266::putc(char c) { - while (!wifi.writeable() || wifi.readable()); + while (!wifi.writeable() || wifi.readable()); //wait for echoed command characters to be read first return wifi.putc(c); } @@ -243,10 +242,10 @@ if (!ACK || !strcmp(ACK, "NO")) { for (int i = 0; i < strlen(cmd); i++){ result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result; - wait(.005); + wait(.005); // prevents stuck recieve ready (?) need to let echoed character get read first } putc(13); //CR - wait(.005); + wait(.005); // wait for echo putc(10); //LF } else { @@ -257,10 +256,10 @@ tmr.start(); for (int i = 0; i < strlen(cmd); i++){ result = (putc(cmd[i]) == cmd[i]) ? result + 1 : result; - wait(.005); + wait(.005); // wait for echo } putc(13); //CR - wait(.005); + wait(.005); // wait for echo putc(10); //LF while (1) {