1. Connecting ESP32 to the Network Before performing MQTT communication, the ESP32 needs to connect to a WiFi network. Below is the code to connect to WiFi: import network import time def connect_wifi(ssid, password): # Create WiFi client interface wlan = network.WLAN(network.STA_IF) wlan.active(True) # Check if already connected if not wlan.isconnected(): print('Connecting to network…') wlan.connect(ssid, … Read more
Are you still troubled by poor signals from CMCC or China Unicom? Are you worried about running out of data at the end of the month? Now, you only need a Phicomm K1 router and a Ruijie account password to provide 24-hour WiFi coverage for your entire dormitory! Download the required files: -TFTP32/TFTP64 (depending on … Read more
The strength of the signal does not necessarily equate to fast internet speed, but to achieve fast speeds, a strong signal is essential. Therefore, when trying to use WiFi at Starbucks, cafes, McDonald’s, shopping malls, sports venues, hospitals, buses, or subways for a day of work (as the author only thinks about work), finding a … Read more
—– Charging Head Network Disassembly Report No. 2224 —– Introduction Portable WiFi has emerged as a popular networking device in recent years, converting mobile networks into WiFi output through an integrated wireless connection module, allowing smartphones and laptops to connect. The built-in large-capacity battery provides extended battery life, preventing smartphones from running out of power … Read more
The essence of smart home network conflicts lies in the competition for resources in the 2.4GHz frequency band. Establishing a system of “complementary protocol characteristics + three-dimensional network planning” can achieve stable operation. When Zigbee (2.4GHz) and WiFi (2.4/5GHz) interfere at the same frequency, the data transmission error rate increases by 40%, necessitating a comprehensive … Read more
Starting from Android 9, the WiFi concurrency feature has been supported, with the following official description: Android 9 introduces a feature that allows devices to operate in both STA and AP modes simultaneously. For devices that support Dual Band Simultaneous (DBS), this feature enables new functionalities, such as not interrupting the STA WLAN when the … Read more
The Matter protocol is the ultimate next-generation smart home protocol. But how does it compare to other protocols like Zigbee, Z-Wave, and WiFi? What advantages and disadvantages does it bring? Let’s explore in this article: Smart home protocols refer to the guidelines and regulations for transmitting information between internet-connected appliances and devices. Although some protocols … Read more
1. Code The web server based on the ESP32 IDF framework includes WiFi connection, HTTP service, front-end interaction, and hardware control functions: #include <stdio.h> #include <string.h> #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "esp_system.h" #include "esp_wifi.h" #include "esp_event.h" #include "esp_log.h" #include "nvs_flash.h" #include "esp_http_server.h" #include "driver/gpio.h" #include "cJSON.h" // WiFi configuration #define WIFI_SSID "your_SSID" #define WIFI_PASS "your_PASSWORD" … Read more
Development Steps: Connection Process 2. Core Functions Station Mode (Connect to Router) AP Mode (Create Hotspot) Network Scanning HTTP Requests Socket Communication Test Code: 1. Connect to WiFi (Station Mode) import network import time # Configure WiFi SSID ="your_wifi_ssid" PASSWORD ="your_wifi_password" sta_if = network.WLAN(network.STA_IF) sta_if.active(True) if not sta_if.isconnected(): print("Connecting to WiFi…") sta_if.connect(SSID, PASSWORD) # Wait … Read more
Click the blue text Follow us DS-WIFI Remote Wireless Data Acquisition The DS-WIFI device is a Wi-Fi modem used for remote wireless data transmission between our data acquisition systems. It is ideal for testing mobile objects and remote measurement applications. Main Features Remote: The DS-WIFI4 has high output power, providing a longer data transmission range … Read more