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)
Revision 26:0d5bcb3903e2, committed 2014-12-30
- Comitter:
- michaeljkoster
- Date:
- Tue Dec 30 03:21:33 2014 +0000
- Parent:
- 25:8e2b04473830
- Child:
- 27:9c6cefc12f0c
- Commit message:
- set baud rate and remove printf from rx handler
Changed in this revision
ESP8266/ESP8266.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/ESP8266/ESP8266.cpp Tue Dec 30 00:16:21 2014 +0000 +++ b/ESP8266/ESP8266.cpp Tue Dec 30 03:21:33 2014 +0000 @@ -50,7 +50,7 @@ { memset(&state, 0, sizeof(state)); -/* // change all ' ' in '$' in the ssid and the passphrase + // change all ' ' in '$' in the ssid and the passphrase strcpy(this->ssid, ssid); for (int i = 0; i < strlen(ssid); i++) { if (this->ssid[i] == ' ') @@ -61,12 +61,12 @@ if (this->phrase[i] == ' ') this->phrase[i] = '$'; } -*/ + inst = this; attach_rx(false); - wifi.baud(9600); // initial baud rate of the ESP8266 + wifi.baud(115200); // initial baud rate of the ESP8266 state.associated = false; state.cmdMode = false; @@ -170,10 +170,6 @@ //sendCommand("AT+RST", "ready", NULL, 10000); state.associated = false; - //pc.printf("setting baud rate\r\n"); - //sendCommand("AT+CIOBAUD=9600", "OK", NULL, 2000); - //wifi.baud(9600); - //sendCommand("AT", "OK", NULL, 1000); } bool ESP8266::reboot() @@ -189,8 +185,7 @@ while (wifi.readable()){ c=wifi.getc(); buf_ESP8266.queue(c); - if (state.cmdMode) pc.printf("%c",c); //debug echo - //pc.printf("%c",c); //debug echo + //if (state.cmdMode) pc.printf("%c",c); //debug echo, needs fast serial console to prevent UART overruns } } @@ -292,6 +287,7 @@ return -1; } else if (readable()) { read = getc(); + pc.printf("%c",read); //debug echo if ( read != '\r' && read != '\n') { checking += read; found = checking.find(ACK); @@ -300,8 +296,8 @@ //We flush the buffer while (readable()) - getc(); - + read = getc(); + pc.printf("%c",read); //debug echo break; } }