48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
#include <string.h>
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#include "esp_log.h"
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#include "esp32-lora.h"
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#include "lorcomm.h"
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#define TAG "lorcomm"
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uint8_t mac[6] = {0};
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void send_message(lora32_cfg_t *lora, char *text) {
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uint8_t len = strlen(text) + 1;
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lora_packet packet = { 0 };
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lora_msg msg = { 0 };
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memcpy(packet.src, &mac[3], 3);
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memset(packet.dst, 0xFF, 3);
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packet.type = TEXT;
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packet.payload = malloc(LORA_PACKET_HEADER_SIZE + len);
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msg.length = len;
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msg.msg = malloc(LORA_MSG_HEADER_SIZE + len);
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memcpy(msg.msg, text, len);
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uint8_t buf_len = LORA_PACKET_HEADER_SIZE + LORA_MSG_HEADER_SIZE + len;
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uint8_t *send_buf = malloc(buf_len);
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ESP_LOGI(TAG, "packet length: %d", buf_len);
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// set src, dst, length
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memcpy(send_buf, (uint8_t*)&packet, LORA_PACKET_HEADER_SIZE);
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memcpy((uint8_t*)(send_buf + LORA_PACKET_HEADER_SIZE), (void*)&msg, LORA_MSG_HEADER_SIZE);
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memcpy((uint8_t*)(send_buf + LORA_PACKET_HEADER_SIZE + LORA_MSG_HEADER_SIZE), (void*)msg.msg, len);
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ESP_LOGI(TAG, "src: [%02X:%02X:%02X]", packet.src[0], packet.src[1], packet.src[2]);
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ESP_LOGI(TAG, "dst: [%02X:%02X:%02X]", packet.dst[0], packet.dst[1], packet.dst[2]);
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lora32_send(lora, send_buf, buf_len);
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free(packet.payload);
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packet.payload = NULL;
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free(msg.msg);
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msg.msg = NULL;
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free(send_buf);
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}
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