[问答]

ESP MESH各节点无法互联是为什么？如何解决？

问答对人有帮助，内容完整，我也想知道答案 0 最近测试esp-mesh，发现使用例程编译后没两个esp32开发板没办法组网，已经试遍所有办法。 SDK是Arduino 2.0.0 rc1(idf 4.4)。之前用IDF3.3.1测试也是相同的结果。使用idf 4.4的代码如下(两块开发板刷入相同内容）。 Code: Select all #include #include #include "esp_wifi.h" #include "esp_system.h" #include "esp_event.h" #include "esp_log.h" #include "esp_mesh.h" #include "esp_mesh_internal.h" #include "nvs_flash.h" #include "esp_netif.h" static bool is_mesh_connected = false; static mesh_addr_t mesh_parent_addr; static int mesh_layer = -1; static esp_netif_t netif_sta = NULL; #define CONFIG_MESH_ROUTE_TABLE_SIZE 50 uint8_t g_meshAddr[6] = {0}; uint8_t g_deviceId[6] = {0}; #define CONFIG_MESH_TOPOLOGY MESH_TOPO_TREE / MESH_TOPO_TREE / MESH_TOPO_CHAIN / #define CONFIG_MESH_PS_DEV_DUTY 10 / 1 - 100 / #define CONFIG_MESH_PS_DEV_DUTY_TYPE MESH_PS_DEVICE_DUTY_REQUEST / MESH_PS_DEVICE_DUTY_REQUEST / MESH_PS_DEVICE_DUTY_DEMAND / #define CONFIG_MESH_PS_NWK_DUTY 10 #define CONFIG_MESH_PS_NWK_DUTY_DURATION -1 #define CONFIG_MESH_PS_NWK_DUTY_RULE MESH_PS_NETWORK_DUTY_APPLIED_ENTIRE //#define CONFIG_MESH_ENABLE_PS void mesh_event_handler(void arg, esp_event_base_t event_base, int32_t event_id, void event_data) { mesh_addr_t id = {0}; static uint8_t last_layer = 0; switch(event_id) { case MESH_EVENT_STARTED: { esp_mesh_get_id(&id); Serial.printf("ID:%02x:%02x:%02x:%02x:%02x:%02xn", MAC2STR(id.addr)); is_mesh_connected = false; mesh_layer = esp_mesh_get_layer(); } break; case MESH_EVENT_STOPPED: { Serial.printf("n"); is_mesh_connected = false; mesh_layer = esp_mesh_get_layer(); } break; case MESH_EVENT_CHILD_CONNECTED: { mesh_event_child_connected_t child_connected = (mesh_event_child_connected_t )event_data; Serial.printf("aid:%d, %02x:%02x:%02x:%02x:%02x:%02xn", child_connected->aid, MAC2STR(child_connected->mac)); } break; case MESH_EVENT_CHILD_DISCONNECTED: { mesh_event_child_disconnected_t child_disconnected = (mesh_event_child_disconnected_t )event_data; Serial.printf("aid:%d, %02x:%02x:%02x:%02x:%02x:%02xn", child_disconnected->aid, MAC2STR(child_disconnected->mac)); } break; case MESH_EVENT_ROUTING_TABLE_ADD: { mesh_event_routing_table_change_t routing_table = (mesh_event_routing_table_change_t )event_data; Serial.printf("add %d, new:%dn", routing_table->rt_size_change, routing_table->rt_size_new); } break; case MESH_EVENT_ROUTING_TABLE_REMOVE: { mesh_event_routing_table_change_t routing_table = (mesh_event_routing_table_change_t )event_data; Serial.printf("remove %d, new:%dn", routing_table->rt_size_change, routing_table->rt_size_new); } break; case MESH_EVENT_NO_PARENT_FOUND: { mesh_event_no_parent_found_t no_parent = (mesh_event_no_parent_found_t )event_data; Serial.printf("scan times:%dn", no_parent->scan_times); } / TODO handler for the failure / break; case MESH_EVENT_PARENT_CONNECTED: { mesh_event_connected_t connected = (mesh_event_connected_t )event_data; esp_mesh_get_id(&id); mesh_layer = connected->self_layer; memcpy(&mesh_parent_addr.addr, connected->connected.bssid, 6); Serial.printf( "layer:%d-->%d, parent:%02x:%02x:%02x:%02x:%02x:%02x%s, ID:%02x:%02x:%02x:%02x:%02x:%02xn", last_layer, mesh_layer, MAC2STR(mesh_parent_addr.addr), esp_mesh_is_root() ? "" : (mesh_layer == 2) ? "" : "", MAC2STR(id.addr)); last_layer = mesh_layer; is_mesh_connected = true; if(esp_mesh_is_root()) { // 根节点需要在这里开启DHCP获取IP esp_netif_dhcpc_start(netif_sta); } else { } // 开启2个任务 // -> esp_mesh_comm_p2p_start(); } break; case MESH_EVENT_PARENT_DISCONNECTED: { mesh_event_disconnected_t disconnected = (mesh_event_disconnected_t )event_data; Serial.printf( "reason:%dn", disconnected->reason); is_mesh_connected = false; mesh_layer = esp_mesh_get_layer(); } break; case MESH_EVENT_LAYER_CHANGE: { mesh_event_layer_change_t layer_change = (mesh_event_layer_change_t )event_data; mesh_layer = layer_change->new_layer; Serial.printf("layer:%d-->%d%sn", last_layer, mesh_layer, esp_mesh_is_root() ? "" : (mesh_layer == 2) ? "" : ""); last_layer = mesh_layer; if(mesh_layer == 1) { // 这里1是根节点，意味着节点此时变化为根节点 // 此处可以添加节点切换的用户自定义功能 } else { } } break; case MESH_EVENT_ROOT_ADDRESS: { mesh_event_root_address_t root_addr = (mesh_event_root_address_t )event_data; esp_mesh_get_id(&id); Serial.printf("root address:%02x:%02x:%02x:%02x:%02x:%02x, ID:%02x:%02x:%02x:%02x:%02x:%02xn", MAC2STR(root_addr->addr), MAC2STR(id.addr)); // 此处登记自身在路由表中的地址 int route_table_size = 0; mesh_addr_t route_table[CONFIG_MESH_ROUTE_TABLE_SIZE]; esp_mesh_get_routing_table((mesh_addr_t ) &route_table, CONFIG_MESH_ROUTE_TABLE_SIZE * 6, &route_table_size); memcpy(g_meshAddr, route_table[0].addr, 6); Serial.printf("meshAddr:%02x:%02x:%02x:%02x:%02x:%02xn", MAC2STR(g_meshAddr)); // 此处设置默认设备ID memcpy(g_deviceId, g_meshAddr, 6); } break; case MESH_EVENT_VOTE_STARTED: { mesh_event_vote_started_t vote_started = (mesh_event_vote_started_t )event_data; Serial.printf( "attempts:%d, reason:%d, rc_addr:%02x:%02x:%02x:%02x:%02x:%02xn", vote_started->attempts, vote_started->reason, MAC2STR(vote_started->rc_addr.addr)); } break; case MESH_EVENT_VOTE_STOPPED: { Serial.printf("n"); break; } case MESH_EVENT_ROOT_SWITCH_REQ: { mesh_event_root_switch_req_t switch_req = (mesh_event_root_switch_req_t )event_data; Serial.printf( "reason:%d, rc_addr:%02x:%02x:%02x:%02x:%02x:%02xn", switch_req->reason, MAC2STR( switch_req->rc_addr.addr)); } break; case MESH_EVENT_ROOT_SWITCH_ACK: { /* new root / mesh_layer = esp_mesh_get_layer(); esp_mesh_get_parent_bssid(&mesh_parent_addr); Serial.printf("layer:%d, parent:%02x:%02x:%02x:%02x:%02x:%02xn", mesh_layer, MAC2STR(mesh_parent_addr.addr)); } break; case MESH_EVENT_TODS_STATE: { mesh_event_toDS_state_t toDs_state = (mesh_event_toDS_state_t )event_data; Serial.printf("state:%dn", toDs_state); } break; case MESH_EVENT_ROOT_FIXED: { mesh_event_root_fixed_t root_fixed = (mesh_event_root_fixed_t )event_data; Serial.printf("%sn", root_fixed->is_fixed ? "fixed" : "not fixed"); } break; case MESH_EVENT_ROOT_ASKED_YIELD: { mesh_event_root_conflict_t root_conflict = (mesh_event_root_conflict_t )event_data; Serial.printf( "%02x:%02x:%02x:%02x:%02x:%02x, rssi:%d, capacity:%dn", MAC2STR(root_conflict->addr), root_conflict->rssi, root_conflict->capacity); } break; case MESH_EVENT_CHANNEL_SWITCH: { mesh_event_channel_switch_t channel_switch = (mesh_event_channel_switch_t )event_data; Serial.printf("new channel:%dn", channel_switch->channel); } break; case MESH_EVENT_SCAN_DONE: { mesh_event_scan_done_t scan_done = (mesh_event_scan_done_t )event_data; Serial.printf("number:%dn", scan_done->number); } break; case MESH_EVENT_NETWORK_STATE: { mesh_event_network_state_t network_state = (mesh_event_network_state_t )event_data; Serial.printf("is_rootless:%dn", network_state->is_rootless); } break; case MESH_EVENT_STOP_RECONNECTION: { Serial.printf("n"); } break; case MESH_EVENT_FIND_NETWORK: { mesh_event_find_network_t find_network = (mesh_event_find_network_t )event_data; Serial.printf("new channel:%d, router BSSID:%02x:%02x:%02x:%02x:%02x:%02xn", find_network->channel, MAC2STR(find_network->router_bssid)); } break; case MESH_EVENT_ROUTER_SWITCH: { mesh_event_router_switch_t router_switch = (mesh_event_router_switch_t )event_data; Serial.printf("new router:%s, channel:%d, %02x:%02x:%02x:%02x:%02x:%02xn", router_switch->ssid, router_switch->channel, MAC2STR(router_switch->bssid)); } break; default: Serial.printf("unknown id:%dn", event_id); break; } } void ip_event_handler(void arg, esp_event_base_t event_base, int32_t event_id, void event_data) { ip_event_got_ip_t event = (ip_event_got_ip_t ) event_data; Serial.printf("IP: %d.%d.%d.%dn", IP2STR(&event->ip_info.ip)); } #define DEFAULT_MESH_SSID "aaaaaaaaaa" /* Max=30+1 Min=8+1(Base64编码6字节MAC有8位)/ #define DEFAULT_MESH_PASSWORD "bbbbbbbbbb" / Max=60+1 / #define DEFAULT_MESH_CHANNEL 6 #define DEFAULT_MESH_MAX_PLAYER 6 #define DEFAULT_MESH_AP_PASSWD "MESH_AP_PASSWORD" #define DEFAULT_MESH_AP_CONNECTIONS 6 static const uint8_t MESH_ID[6] = { 0x77, 0x77, 0x77, 0x77, 0x77, 0x77}; //static const uint8_t MESH_ID[6] = { 0x88, 0x88, 0x88, 0x88, 0x88, 0x88}; void setup() { // put your setup code here, to run once: Serial.begin(115200); / 初始化NVS / nvs_flash_init(); / 初始化底层TCP/IP堆栈 / esp_netif_init(); / 事件初始化/ esp_event_loop_create_default(); / 为 Mesh 创建STA和AP模式网络接口（仅保存STA接口供进一步处理），并关闭DHCP服务器和客户端（DHCP客户端只有设备升根节点才启用） / esp_netif_create_default_wifi_mesh_netifs(&netif_sta, NULL); / Wi-Fi 初始化 / wifi_init_config_t config = WIFI_INIT_CONFIG_DEFAULT(); esp_wifi_init(&config); / 注册 IP 事件处理程序 / esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &ip_event_handler, NULL); esp_wifi_set_storage(WIFI_STORAGE_FLASH); esp_wifi_start(); / Mesh 初始化 / esp_mesh_init(); / 注册 Mesh 事件处理程序 / esp_event_handler_register(MESH_EVENT, ESP_EVENT_ANY_ID, &mesh_event_handler, NULL); / set mesh topology / esp_mesh_set_topology(CONFIG_MESH_TOPOLOGY); / 设置 Mesh 最大层 / esp_mesh_set_max_layer(DEFAULT_MESH_MAX_PLAYER); / 设置 Mesh 根节点推举百分比（只有达到此阈值才可成为根） / esp_mesh_set_vote_percentage(1); // ??? esp_mesh_set_xon_qsize(128); #ifdef CONFIG_MESH_ENABLE_PS / Enable mesh PS function / esp_mesh_enable_ps(); / 设置 Mesh AP模式关联过期时间（在AP模式下此时间内未收到某个子节点的任何数据，Mesh将子节点置为不活跃的并分离它） / esp_mesh_set_ap_assoc_expire(60); / better to increase the announce interval to avoid too much management traffic, if a small duty cycle is set. / esp_mesh_set_announce_interval(600, 3300); #else / Disable mesh PS function / esp_mesh_disable_ps(); esp_mesh_set_ap_assoc_expire(10); #endif / Mesh 配置 / / 默认启用 Mesh IE 加密 / mesh_cfg_t cfg; cfg.crypto_funcs = &g_wifi_default_mesh_crypto_funcs; / Mesh ID / memcpy((uint8_t ) &cfg.mesh_id, MESH_ID, 6); /* 路由器 / / 信道（需与路由器信道匹配）/ cfg.channel = DEFAULT_MESH_CHANNEL; // 这里为了方便直接填写了要接入WIFI的SSID和密码 cfg.router.ssid_len = strlen(DEFAULT_MESH_SSID); strcpy((char)cfg.router.ssid, DEFAULT_MESH_SSID); strcpy((char)cfg.router.password, DEFAULT_MESH_PASSWORD); / Mesh softAP / esp_mesh_set_ap_authmode(WIFI_AUTH_WPA2_PSK); cfg.mesh_ap.max_connection = DEFAULT_MESH_AP_CONNECTIONS; strcpy((char)cfg.mesh_ap.password, DEFAULT_MESH_AP_PASSWD); esp_mesh_set_config(&cfg); /* Mesh 启动 / esp_mesh_start(); #ifdef CONFIG_MESH_ENABLE_PS / set the device active duty cycle. (default:10, MESH_PS_DEVICE_DUTY_REQUEST) / esp_mesh_set_active_duty_cycle(CONFIG_MESH_PS_DEV_DUTY, CONFIG_MESH_PS_DEV_DUTY_TYPE); / set the network active duty cycle. (default:10, -1, MESH_PS_NETWORK_DUTY_APPLIED_ENTIRE) */ esp_mesh_set_network_duty_cycle(CONFIG_MESH_PS_NWK_DUTY, CONFIG_MESH_PS_NWK_DUTY_DURATION, CONFIG_MESH_PS_NWK_DUTY_RULE); #endif Serial.printf("mesh starts successfully, heap:%d, %s<%d>%s, ps:%dn", esp_get_minimum_free_heap_size(), esp_mesh_is_root_fixed() ? "root fixed" : "root not fixed", esp_mesh_get_topology(), esp_mesh_get_topology() ? "(chain)":"(tree)", esp_mesh_is_ps_enabled()); } void loop() { // put your main code here, to run repeatedly: //delay(10); Serial.println(esp_mesh_get_type()); delay(1000); } 运行结果输出以下内容： setCpuFrequencyMhz(): PLL: 480 / 2 = 240 Mhz, APB: 80000000 Hz mesh starts successfully, heap:106896, root not fixed<0>(tree), ps:0 scan times:60 scan times:60 scan times:60 scan times:60 scan times:60 ... 0
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