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Enhanced deep sleep example

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Manuel Bl
2021-09-29 19:40:57 +02:00
parent 31b00f05a8
commit 9fd24c65ec
3 changed files with 19 additions and 5 deletions
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11
examples/deep_sleep_in_c/main/main.c
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@ -16,6 +16,8 @@
#include "nvs_flash.h"
#include "esp_log.h"
#include "esp_sleep.h"
#include <stdio.h>
#include <string.h>
#include "ttn.h"
@ -46,7 +48,9 @@ const char *appKey = "????????????????????????????????";
#define TTN_PIN_DIO1 35
#define TX_INTERVAL 60 // in sec
static uint8_t msgData[] = "Hello, world";
// This counter value is retained (in RTC memory) during deep sleep
RTC_DATA_ATTR int counter_in_rtc_mem;
void messageReceived(const uint8_t* message, size_t length, ttn_port_t port)
@ -113,7 +117,10 @@ void app_main(void)
}
printf("Sending message...\n");
ttn_response_code_t res = ttn_transmit_message(msgData, sizeof(msgData) - 1, 1, false);
counter_in_rtc_mem++;
char message[20];
sprintf(message, "Hello %d", counter_in_rtc_mem);
ttn_response_code_t res = ttn_transmit_message((uint8_t *)message, strlen(message), 1, false);
printf(res == TTN_SUCCESSFUL_TRANSMISSION ? "Message sent.\n" : "Transmission failed.\n");
// Wait until TTN communication is idle and save state