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#include <esp_now.h> #include <WiFi.h> uint8_t broadcastAddress[] = {0x24, 0x0A, 0xC4, 0x35, 0x3A, 0x90}; // MAC address of the receiver void setup() { Serial.begin(115200); WiFi.mode(WIFI_STA); if (esp_now_init() != ESP_OK) { Serial.println("Error initializing ESP-NOW"); return; } esp_now_peer_info_t peerInfo; memcpy(peerInfo.peer_addr, broadcastAddress, 6); peerInfo.channel = 0; peerInfo.encrypt = false; if (esp_now_add_peer(&peerInfo) != ESP_OK) { Serial.println("Failed to add peer"); return; } } void loop() { const char *message = "Hello, ESP-NOW!"; esp_err_t result = esp_now_send(broadcastAddress, (uint8_t *)message, strlen(message)); if (result == ESP_OK) { Serial.println("Message sent successfully"); } else { Serial.println("Error sending message"); } delay(1000); // Send message every second }
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