347 lines
9.8 KiB
C
347 lines
9.8 KiB
C
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/* Mirf Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <stdio.h>
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#include <inttypes.h>
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#include <stdlib.h>
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "freertos/message_buffer.h"
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#include "esp_system.h"
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#include "esp_wifi.h"
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#include "esp_event.h"
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#include "esp_log.h"
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#include "nvs_flash.h"
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#include "mdns.h"
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#include "mirf.h"
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#include "mqtt.h"
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/* FreeRTOS event group to signal when we are connected*/
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static EventGroupHandle_t s_wifi_event_group;
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/* The event group allows multiple bits for each event, but we only care about two events:
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* - we are connected to the AP with an IP
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* - we failed to connect after the maximum amount of retries */
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#define WIFI_CONNECTED_BIT BIT0
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#define WIFI_FAIL_BIT BIT1
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static const char *TAG = "MAIN";
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static int s_retry_num = 0;
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MessageBufferHandle_t xMessageBufferTrans;
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MessageBufferHandle_t xMessageBufferRecv;
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// The total number of bytes (not single messages) the message buffer will be able to hold at any one time.
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size_t xBufferSizeBytes = 1024;
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// The size, in bytes, required to hold each item in the message,
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size_t xItemSize = 32;
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static void event_handler(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data)
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{
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if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
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esp_wifi_connect();
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} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
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if (s_retry_num < CONFIG_ESP_MAXIMUM_RETRY) {
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esp_wifi_connect();
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s_retry_num++;
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ESP_LOGI(TAG, "retry to connect to the AP");
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} else {
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xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
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}
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ESP_LOGI(TAG,"connect to the AP fail");
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} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
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ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
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ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
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s_retry_num = 0;
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xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
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}
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}
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bool wifi_init_sta(void)
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{
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bool ret = false;
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s_wifi_event_group = xEventGroupCreate();
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ESP_ERROR_CHECK(esp_netif_init());
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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esp_netif_create_default_wifi_sta();
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK(esp_wifi_init(&cfg));
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esp_event_handler_instance_t instance_any_id;
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esp_event_handler_instance_t instance_got_ip;
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ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
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ESP_EVENT_ANY_ID,
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&event_handler,
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NULL,
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&instance_any_id));
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ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
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IP_EVENT_STA_GOT_IP,
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&event_handler,
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NULL,
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&instance_got_ip));
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wifi_config_t wifi_config = {
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.sta = {
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.ssid = CONFIG_ESP_WIFI_SSID,
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.password = CONFIG_ESP_WIFI_PASSWORD,
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/* Setting a password implies station will connect to all security modes including WEP/WPA.
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* However these modes are deprecated and not advisable to be used. Incase your Access point
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* doesn't support WPA2, these mode can be enabled by commenting below line */
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.threshold.authmode = WIFI_AUTH_WPA2_PSK,
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.pmf_cfg = {
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.capable = true,
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.required = false
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},
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},
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};
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ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) );
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ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config) );
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ESP_ERROR_CHECK(esp_wifi_start() );
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ESP_LOGI(TAG, "wifi_init_sta finished.");
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/* Waiting until either the connection is established (WIFI_CONNECTED_BIT) or connection failed for the maximum
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* number of re-tries (WIFI_FAIL_BIT). The bits are set by event_handler() (see above) */
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EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
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WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
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pdFALSE,
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pdFALSE,
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portMAX_DELAY);
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/* xEventGroupWaitBits() returns the bits before the call returned, hence we can test which event actually
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* happened. */
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if (bits & WIFI_CONNECTED_BIT) {
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ESP_LOGI(TAG, "connected to ap SSID:%s password:%s", CONFIG_ESP_WIFI_SSID, CONFIG_ESP_WIFI_PASSWORD);
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ret = true;
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} else if (bits & WIFI_FAIL_BIT) {
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ESP_LOGI(TAG, "Failed to connect to SSID:%s, password:%s", CONFIG_ESP_WIFI_SSID, CONFIG_ESP_WIFI_PASSWORD);
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} else {
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ESP_LOGE(TAG, "UNEXPECTED EVENT");
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}
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/* The event will not be processed after unregister */
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ESP_ERROR_CHECK(esp_event_handler_instance_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, instance_got_ip));
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ESP_ERROR_CHECK(esp_event_handler_instance_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, instance_any_id));
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vEventGroupDelete(s_wifi_event_group);
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return ret;
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}
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esp_err_t query_mdns_host(const char * host_name, char *ip)
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{
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ESP_LOGD(__FUNCTION__, "Query A: %s", host_name);
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struct esp_ip4_addr addr;
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addr.addr = 0;
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esp_err_t err = mdns_query_a(host_name, 10000, &addr);
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if(err){
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if(err == ESP_ERR_NOT_FOUND){
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ESP_LOGW(__FUNCTION__, "%s: Host was not found!", esp_err_to_name(err));
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return ESP_FAIL;
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}
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ESP_LOGE(__FUNCTION__, "Query Failed: %s", esp_err_to_name(err));
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return ESP_FAIL;
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}
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ESP_LOGD(__FUNCTION__, "Query A: %s.local resolved to: " IPSTR, host_name, IP2STR(&addr));
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sprintf(ip, IPSTR, IP2STR(&addr));
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return ESP_OK;
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}
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void convert_mdns_host(char * from, char * to)
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{
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ESP_LOGI(__FUNCTION__, "from=[%s]",from);
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strcpy(to, from);
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char *sp;
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sp = strstr(from, ".local");
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if (sp == NULL) return;
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int _len = sp - from;
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ESP_LOGD(__FUNCTION__, "_len=%d", _len);
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char _from[128];
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strcpy(_from, from);
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_from[_len] = 0;
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ESP_LOGI(__FUNCTION__, "_from=[%s]", _from);
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char _ip[128];
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esp_err_t ret = query_mdns_host(_from, _ip);
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ESP_LOGI(__FUNCTION__, "query_mdns_host=%d _ip=[%s]", ret, _ip);
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if (ret != ESP_OK) return;
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strcpy(to, _ip);
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ESP_LOGI(__FUNCTION__, "to=[%s]", to);
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}
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#if CONFIG_ADVANCED
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void AdvancedSettings(NRF24_t * dev)
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{
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#if CONFIG_RF_RATIO_2M
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ESP_LOGW(pcTaskGetName(0), "Set RF Data Ratio to 2MBps");
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Nrf24_SetSpeedDataRates(dev, 1);
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#endif // CONFIG_RF_RATIO_2M
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#if CONFIG_RF_RATIO_1M
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ESP_LOGW(pcTaskGetName(0), "Set RF Data Ratio to 1MBps");
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Nrf24_SetSpeedDataRates(dev, 0);
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#endif // CONFIG_RF_RATIO_2M
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#if CONFIG_RF_RATIO_250K
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ESP_LOGW(pcTaskGetName(0), "Set RF Data Ratio to 250KBps");
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Nrf24_SetSpeedDataRates(dev, 2);
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#endif // CONFIG_RF_RATIO_2M
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ESP_LOGW(pcTaskGetName(0), "CONFIG_RETRANSMIT_DELAY=%d", CONFIG_RETRANSMIT_DELAY);
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Nrf24_setRetransmitDelay(dev, CONFIG_RETRANSMIT_DELAY);
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}
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#endif // CONFIG_ADVANCED
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#if CONFIG_RECEIVER
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void receiver(void *pvParameters)
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{
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ESP_LOGI(pcTaskGetName(0), "Start");
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NRF24_t dev;
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Nrf24_init(&dev);
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uint8_t payload = 32;
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uint8_t channel = CONFIG_RADIO_CHANNEL;
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Nrf24_config(&dev, channel, payload);
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// Set my own address using 5 characters
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esp_err_t ret = Nrf24_setRADDR(&dev, (uint8_t *)"FGHIJ");
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if (ret != ESP_OK) {
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ESP_LOGE(pcTaskGetName(0), "nrf24l01 not installed");
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while(1) { vTaskDelay(1); }
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}
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#if CONFIG_ADVANCED
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AdvancedSettings(&dev);
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#endif // CONFIG_ADVANCED
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// Print settings
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Nrf24_printDetails(&dev);
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uint8_t buf[xItemSize];
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// Clear RX FiFo
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while(1) {
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if (Nrf24_dataReady(&dev) == false) break;
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Nrf24_getData(&dev, buf);
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}
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while(1) {
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// Wait for received data
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if (Nrf24_dataReady(&dev)) {
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Nrf24_getData(&dev, buf);
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ESP_LOGI(pcTaskGetName(NULL), "Nrf24_getData buf=[%.*s]",payload, buf);
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size_t spacesAvailable = xMessageBufferSpacesAvailable( xMessageBufferTrans );
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ESP_LOGI(pcTaskGetName(NULL), "spacesAvailable=%d", spacesAvailable);
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if (spacesAvailable < xItemSize*2) {
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ESP_LOGW(pcTaskGetName(NULL), "xMessageBuffer available less than %d", xItemSize*2);
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} else {
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size_t sended = xMessageBufferSend(xMessageBufferTrans, buf, payload, portMAX_DELAY);
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if (sended != payload) {
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ESP_LOGE(pcTaskGetName(NULL), "xMessageBufferSend fail");
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}
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}
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}
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vTaskDelay(1); // Avoid WatchDog alerts
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} // end while
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}
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#endif // CONFIG_RECEIVER
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#if CONFIG_SENDER
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void sender(void *pvParameters)
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{
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ESP_LOGI(pcTaskGetName(0), "Start");
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NRF24_t dev;
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Nrf24_init(&dev);
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uint8_t payload = 32;
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uint8_t channel = CONFIG_RADIO_CHANNEL;
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Nrf24_config(&dev, channel, payload);
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// Set destination address using 5 characters
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esp_err_t ret = Nrf24_setTADDR(&dev, (uint8_t *)"FGHIJ");
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if (ret != ESP_OK) {
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ESP_LOGE(pcTaskGetName(0), "nrf24l01 not installed");
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while(1) { vTaskDelay(1); }
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}
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#if CONFIG_ADVANCED
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AdvancedSettings(&dev);
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#endif // CONFIG_ADVANCED
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// Print settings
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Nrf24_printDetails(&dev);
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ESP_LOGI(pcTaskGetName(0), "Wait for mqtt...");
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uint8_t buf[xItemSize];
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while(1) {
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size_t received = xMessageBufferReceive(xMessageBufferRecv, buf, sizeof(buf), portMAX_DELAY);
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ESP_LOGI(pcTaskGetName(NULL), "xMessageBufferReceive received=%d", received);
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Nrf24_send(&dev, buf);
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vTaskDelay(1);
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ESP_LOGI(pcTaskGetName(0), "Wait for sending.....");
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if (Nrf24_isSend(&dev, 1000)) {
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ESP_LOGI(pcTaskGetName(0),"Send success");
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} else {
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ESP_LOGW(pcTaskGetName(0),"Send fail");
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}
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}
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}
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#endif // CONFIG_SENDER
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void mqtt_pub(void *pvParameters);
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void mqtt_sub(void *pvParameters);
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void app_main(void)
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{
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// Initialize NVS
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esp_err_t ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK(ret);
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// Initialize WiFi
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if (wifi_init_sta() == false) {
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while(1) vTaskDelay(10);
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}
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// Create MessageBuffer
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xMessageBufferTrans = xMessageBufferCreate(xBufferSizeBytes);
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configASSERT( xMessageBufferTrans );
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xMessageBufferRecv = xMessageBufferCreate(xBufferSizeBytes);
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configASSERT( xMessageBufferRecv );
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// Initialize mDNS
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ESP_ERROR_CHECK( mdns_init() );
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#if CONFIG_SENDER
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xTaskCreate(&sender, "TX", 1024*3, NULL, 2, NULL);
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xTaskCreate(&mqtt_sub, "SUB", 1024*4, NULL, 2, NULL);
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#endif
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#if CONFIG_RECEIVER
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xTaskCreate(&receiver, "RX", 1024*3, NULL, 2, NULL);
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xTaskCreate(&mqtt_pub, "PUB", 1024*4, NULL, 2, NULL);
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#endif
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}
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