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)
Diff: ESP8266Interface.h
- Revision:
- 13:41098c907200
- Parent:
- 6:5176e0864078
- Child:
- 14:4d1128f72e00
diff -r c5f0eac67a8a -r 41098c907200 ESP8266Interface.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ESP8266Interface.h Sun Nov 30 21:14:09 2014 +0000
@@ -0,0 +1,73 @@
+/* ESP8266Interface.h */
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef ESP8266INTERFACE_H_
+#define ESP8266INTERFACE_H_
+
+#include "ESP8266.h"
+
+ /**
+ * Interface using ESP8266 to connect to an IP-based network
+ */
+class ESP8266Interface: public ESP8266 {
+public:
+
+ /**
+ * Constructor
+ *
+ * \param tx mbed pin to use for tx line of Serial interface
+ * \param rx mbed pin to use for rx line of Serial interface
+ * \param reset reset pin of the wifi module ()
+ * \param ssid ssid of the network
+ * \param phrase WEP or WPA key
+ */
+ ESP8266Interface(PinName tx, PinName rx, PinName reset, const char * ssid, const char * phrase );
+
+ /** Initialize the interface with DHCP.
+ * Initialize the interface and configure it to use DHCP (no connection at this point).
+ * \return 0 on success, a negative number on failure
+ */
+ int init(); //With DHCP
+
+ /** Connect
+ * Bring the interface up, start DHCP if needed.
+ * \return 0 on success, a negative number on failure
+ */
+ int connect();
+
+ /** Disconnect
+ * Bring the interface down
+ * \return 0 on success, a negative number on failure
+ */
+ int disconnect();
+
+ /** Get IP address
+ *
+ * \return ip address
+ */
+ char* getIPAddress();
+
+private:
+ char ip_string[20];
+ bool ip_set;
+};
+
+#include "UDPSocket.h"
+
+#endif /* ESP8266INTERFACE_H_ */
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