espnowsimple.h

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/* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE":
* <jensd@jensd.dk/jdn@es.aau.dk> wrote this file.  As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return.
* Jens Dalsgaard Nielsen April 2024
* ----------------------------------------------------------------------------
*
* Heavily inspired by
* Copyright (c) 2023 Samuli Nyman
* SPDX-License-Identifier: MIT
* http://cansat.fi
*/
 
#ifndef ESPSIMPLENOW
 
#define ESPSIMPLENOW
 
 
#include <esp_now.h>
#include <esp_wifi.h>
#include <WiFi.h>
 
#define ESPNOW_SIMPLE_DATA_LGT 100
 
typedef struct  {
  uint8_t pkgTp;  // should
  uint32_t seqNr;;
  unsigned long time;
  char data [ESPNOW_SIMPLE_DATA_LGT];
}espNowSimplePkg;
 
extern esp_err_t espNowSimpleErr;  // Value 0 means noError !
 
extern uint8_t espSimpleNowRunning;  // false(0)) if not running, true running
 
// callbacks required from esp-now library
// our interface - radio callback interface
// empty for now
 

__attribute__((weak)) void espSimpleNowCallbackBinRcvd(const uint8_t *data, int len);
 

__attribute__((weak)) void espSimpleNowCallbackDataSent(const bool success);

uint8_t espSimpleNowInit(uint8_t macAddrLastByte);
 

void espSimpleNowSetMacAddr(uint8_t mac[6]);

void espSimpleNowGetMacAddr(uint8_t mac[6]);

uint8_t espSimpleNowBroadcastData(char *data, uint16_t len);
 
 
#endif