espnow_obj Class Reference

An Object which enables a single peer-to-peer connection. More...

#include <espnow.h>

Public Member Functions
void	init (uint8_t *destination_address)
	Initialize ESP-NOW communication. More...
uint8_t *	get_own_mac_address ()
	Get the MAC address of the local device. More...
int64_t	generate_own_address ()
	Generate a unique ID based on the MAC address. More...
uint8_t *	get_dst_address ()
	Get the destination MAC address. More...
void	set_dst_address (uint8_t *destination_address)
	Set the destination MAC address. More...
uint8_t	send_string (char *send_msg, uint8_t num_of_char)
	Send a string message over ESP-NOW. More...

Static Public Member Functions
static void	OnDataRecv (const uint8_t *mac, const uint8_t *incomingData, int len)
	Callback function when data is received over ESP-NOW. More...
static void	OnDataSent (const uint8_t *mac_addr, esp_now_send_status_t status)
	Callback function when data is sent over ESP-NOW. More...

Public Attributes
esp_now_peer_info_t	peerInfo

Static Public Attributes
static uint8_t	dst_address [6] = {0}
	Destination MAC address for ESP-NOW communication. More...
static char	received_token [4] = {0}
	Received token data from ESP-NOW communication. More...
static uint8_t	received = 0
	Flag indicating whether data has been received. More...

Detailed Description

An Object which enables a single peer-to-peer connection.

Member Function Documentation

generate_own_address()

int64_t generate_own_address

(

)

Generate a unique ID based on the MAC address.

Returns

The generated unique ID.

get_dst_address()

uint8_t * get_dst_address

(

)

Get the destination MAC address.

Returns

The destination MAC address as an array of bytes.

get_own_mac_address()

uint uint8_t * get_own_mac_address

(

)

Get the MAC address of the local device.

Returns

The MAC address as an array of bytes.

init()

void init

(

uint8_t *

destination_address

)

Initialize ESP-NOW communication.

This function initializes ESP-NOW communication and registers callbacks for sending and receiving data.

Parameters

destination_address

The MAC address of the destination device.

OnDataRecv()

void OnDataRecv ( const uint8_t *  mac, const uint8_t *  incomingData, int  len  )

static

Callback function when data is received over ESP-NOW.

Parameters

mac	The MAC address of the sender.
incomingData	The received data.
len	The length of the received data.

OnDataSent()

void OnDataSent ( const uint8_t *  mac_addr, esp_now_send_status_t  status  )

static

Callback function when data is sent over ESP-NOW.

Parameters

mac_addr	The MAC address of the recipient.
status	The send status.

send_string()

uint8_t send_string	(	char *	send_msg,
		uint8_t	num_of_char
	)

Send a string message over ESP-NOW.

Parameters

send_msg	The message to send.
num_of_char	The number of characters in the message.

Returns

1 if the message was sent successfully, 0 otherwise.

set_dst_address()

void set_dst_address

(

uint8_t *

destination_address

)

Set the destination MAC address.

Parameters

destination_address

The new destination MAC address.

Member Data Documentation

dst_address

uint8_t dst_address = {0}

static

Destination MAC address for ESP-NOW communication.

peerInfo

esp_now_peer_info_t peerInfo

received

uint8_t received = 0

static

Flag indicating whether data has been received.

received_token

char received_token = {0}

static

Received token data from ESP-NOW communication.

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The documentation for this class was generated from the following files:

• lib/espnow/espnow.h
• lib/espnow/espnow.cpp