ESP8266Interface class. More...

#include <ESP8266.h>

Public Member Functions
int	get_firmware_version (void)
	Check firmware version of ESP8266.
bool	startup (int mode)
	Startup the ESP8266.
bool	reset (void)
	Reset ESP8266.
bool	dhcp (bool enabled, int mode)
	Enable/Disable DHCP.
nsapi_error_t	connect (const char ap, const char passPhrase)
	Connect ESP8266 to AP.
bool	disconnect (void)
	Disconnect ESP8266 from AP.
const char *	getIPAddress (void)
	Get the IP address of ESP8266.
const char *	getMACAddress (void)
	Get the MAC address of ESP8266.
const char *	getGateway ()
	Get the local gateway.
const char *	getNetmask ()
	Get the local network mask.
int	scan (WiFiAccessPoint *res, unsigned limit)
	Scan for available networks.
bool	dns_lookup (const char name, char ip)
	Perform a dns query.
nsapi_error_t	open_udp (int id, const char *addr, int port, int local_port=0)
	Open a socketed connection.
bool	open_tcp (int id, const char *addr, int port, int keepalive=0)
	Open a socketed connection.
nsapi_error_t	send (int id, const void *data, uint32_t amount)
	Sends data to an open socket.
int32_t	recv_udp (int id, void *data, uint32_t amount, uint32_t timeout=ESP8266_RECV_TIMEOUT)
	Receives datagram from an open UDP socket.
int32_t	recv_tcp (int id, void *data, uint32_t amount, uint32_t timeout=ESP8266_RECV_TIMEOUT)
	Receives stream data from an open TCP socket.
bool	close (int id)
	Closes a socket.
void	setTimeout (uint32_t timeout_ms=ESP8266_MISC_TIMEOUT)
	Allows timeout to be changed between commands.
bool	readable ()
	Checks if data is available.
bool	writeable ()
	Checks if data can be written.
void	sigio (Callback< void()> func)
	Attach a function to call whenever sigio happens in the serial.
template<typename T , typename M >
void	sigio (T *obj, M method)
	Attach a function to call whenever sigio happens in the serial.
void	attach (mbed::Callback< void(nsapi_event_t, intptr_t)> status_cb)
	Attach a function to call whenever network state has changed.
int8_t	get_default_wifi_mode ()
	Read default Wifi mode from flash.
bool	set_default_wifi_mode (const int8_t mode)
	Write default Wifi mode to flash.
nsapi_connection_status_t	get_connection_status () const
	Get the connection status.

Detailed Description

ESP8266Interface class.

This is an interface to a ESP8266 radio.

Definition at line 41 of file ESP8266.h.

Member Function Documentation

void attach ( mbed::Callback< void(nsapi_event_t, intptr_t)> status_cb )

Attach a function to call whenever network state has changed.

Parameters:

func	A pointer to a void function, or 0 to set as none

Definition at line 558 of file ESP8266.cpp.

bool close ( int id )

Closes a socket.

Parameters:

id	id of socket to close, valid only 0-4

Returns:: true only if socket is closed successfully

Definition at line 510 of file ESP8266.cpp.

nsapi_error_t connect	(	const char *	ap,
		const char *	passPhrase
	)

Connect ESP8266 to AP.

Parameters:

ap	the name of the AP
passPhrase	the password of AP

Returns:: NSAPI_ERROR_OK only if ESP8266 is connected successfully

Definition at line 127 of file ESP8266.cpp.

bool dhcp	(	bool	enabled,
		int	mode
	)

Enable/Disable DHCP.

Parameters:

enabled	DHCP enabled when true
mode	mode of DHCP 0-softAP, 1-station, 2-both

Returns:: true only if ESP8266 enables/disables DHCP successfully

Definition at line 112 of file ESP8266.cpp.

bool disconnect ( void )

Disconnect ESP8266 from AP.

Returns:: true only if ESP8266 is disconnected successfully

Definition at line 160 of file ESP8266.cpp.

bool dns_lookup	(	const char *	name,
		char *	ip
	)

Perform a dns query.

Parameters:

name	Hostname to resolve
ip	Buffer to store IP address

Returns:: 0 true on success, false on failure

Definition at line 346 of file ESP8266.cpp.

nsapi_connection_status_t get_connection_status ( ) const

Get the connection status.

Returns:: The connection status according to ConnectionStatusType

Definition at line 667 of file ESP8266.cpp.

int8_t get_default_wifi_mode ( )

Read default Wifi mode from flash.

return Station, SoftAP or SoftAP+Station - 0 on failure

Definition at line 641 of file ESP8266.cpp.

int get_firmware_version ( void )

Check firmware version of ESP8266.

Returns:: integer firmware version or -1 if firmware query command gives outdated response

Definition at line 55 of file ESP8266.cpp.

const char * getGateway ( )

Get the local gateway.

Returns:: Null-terminated representation of the local gateway or null if no network mask has been recieved

Definition at line 199 of file ESP8266.cpp.

const char * getIPAddress ( void )

Get the IP address of ESP8266.

Returns:: null-teriminated IP address or null if no IP address is assigned

Definition at line 169 of file ESP8266.cpp.

const char * getMACAddress ( void )

Get the MAC address of ESP8266.

Returns:: null-terminated MAC address or null if no MAC address is assigned

Definition at line 185 of file ESP8266.cpp.

const char * getNetmask ( )

Get the local network mask.

Returns:: Null-terminated representation of the local network mask or null if no network mask has been recieved

Definition at line 213 of file ESP8266.cpp.

bool open_tcp	(	int	id,
		const char *	addr,
		int	port,
		int	keepalive = `0`
	)

Open a socketed connection.

Parameters:

type	the type of socket to open "UDP" or "TCP"
id	id to give the new socket, valid 0-4
port	port to open connection with
addr	the IP address of the destination
port	the port on the destination
tcp_keepalive	TCP connection's keep alive time, zero means disabled

Returns:: true only if socket opened successfully

Definition at line 317 of file ESP8266.cpp.

nsapi_error_t open_udp	(	int	id,
		const char *	addr,
		int	port,
		int	local_port = `0`
	)

Open a socketed connection.

Parameters:

type	the type of socket to open "UDP" or "TCP"
id	id to give the new socket, valid 0-4
port	port to open connection with
addr	the IP address of the destination
port	the port on the destination
local_port	UDP socket's local port, zero means any

Returns:: true only if socket opened successfully

Definition at line 286 of file ESP8266.cpp.

bool readable ( )

Checks if data is available.

Definition at line 543 of file ESP8266.cpp.

int32_t recv_tcp	(	int	id,
		void *	data,
		uint32_t	amount,
		uint32_t	timeout = `ESP8266_RECV_TIMEOUT`
	)

Receives stream data from an open TCP socket.

Parameters:

id	id to receive from
data	placeholder for returned information
amount	number of bytes to be received

Returns:: the number of bytes received

Definition at line 406 of file ESP8266.cpp.

int32_t recv_udp	(	int	id,
		void *	data,
		uint32_t	amount,
		uint32_t	timeout = `ESP8266_RECV_TIMEOUT`
	)

Receives datagram from an open UDP socket.

Parameters:

id	id to receive from
data	placeholder for returned information
amount	number of bytes to be received

Returns:: the number of bytes received

Definition at line 454 of file ESP8266.cpp.

bool reset ( void )

Reset ESP8266.

Returns:: true only if ESP8266 resets successfully

Definition at line 92 of file ESP8266.cpp.

int scan	(	WiFiAccessPoint *	res,
		unsigned	limit
	)

Scan for available networks.

Parameters:

ap	Pointer to allocated array to store discovered AP
limit	Size of allocated res array, or 0 to only count available AP

Returns:: Number of entries in res, or if count was 0 number of available networks, negative on error see nsapi_error

Definition at line 257 of file ESP8266.cpp.

nsapi_error_t send	(	int	id,
		const void *	data,
		uint32_t	amount
	)

Sends data to an open socket.

Parameters:

id	id of socket to send to
data	data to be sent
amount	amount of data to be sent - max 1024

Returns:: NSAPI_ERROR_OK in success, negative error code in failure

Definition at line 355 of file ESP8266.cpp.

bool set_default_wifi_mode ( const int8_t mode )

Write default Wifi mode to flash.

Definition at line 657 of file ESP8266.cpp.

void setTimeout ( uint32_t timeout_ms = ESP8266_MISC_TIMEOUT )

Allows timeout to be changed between commands.

Parameters:

timeout_ms timeout of the connection

Definition at line 538 of file ESP8266.cpp.

void sigio	(	T *	obj,
		M	method
	)

Attach a function to call whenever sigio happens in the serial.

Parameters:

obj	pointer to the object to call the member function on
method	pointer to the member function to call

Definition at line 239 of file ESP8266.h.

void sigio ( Callback< void()> func )

Attach a function to call whenever sigio happens in the serial.

Parameters:

func	A pointer to a void function, or 0 to set as none

Definition at line 553 of file ESP8266.cpp.

bool startup ( int mode )

Startup the ESP8266.

Parameters:

mode	mode of WIFI 1-client, 2-host, 3-both

Returns:: true only if ESP8266 was setup correctly

Definition at line 73 of file ESP8266.cpp.

bool writeable ( )

Checks if data can be written.

Definition at line 548 of file ESP8266.cpp.

Type:	Program
Mbed OS support:	Mbed OS
Created:	11 Oct 2018
Imports:	23
Forks:	0
Commits:	4
Dependents:	0
Dependencies:	1
Followers:	1

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ESP8266 Class Reference

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Detailed Description

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ESP8266 Class Reference

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Detailed Description

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