ESP32-BLE2MQTT is a powerful tool that seamlessly connects your BLE devices to the MQTT message queue, enabling convenient IoT data transmission and control. It is developed based on the ESP32 chip and built using ESP-IDF v5.2.1, providing a stable and reliable bridge for your IoT projects. The core features of ESP32-BLE2MQTT: 1. Bidirectional Communication: ESP32-BLE2MQTT … Read more
Want to explore new possibilities with hardware? Today, let’s talk about Arduino-ESP32, a hidden gem in the open-source community. I hope that after reading this, you’ll be eager to dive into the ESP32 series chips. What is Arduino-ESP32? In simple terms, Arduino-ESP32 is a tailored Arduino core for powerful chips like ESP32, ESP32-C3, ESP32-S2/S3, and … Read more
Using AI Xiao Zhi on the ESP32 development board typically involves steps such as hardware assembly, software environment setup, firmware flashing, and function configuration. Below is a detailed operational guide suitable for open-source AI Xiao Zhi robot projects based on ESP32 (such as common DIY kits): 1. Hardware Preparation and Assembly 1. Required Hardware Components … Read more
Arduino, ESP32, and FastLED represent a classic learning path that progresses from beginner to advanced, culminating in the creation of stunning artistic effects. They are not isolated technologies but rather a complementary and progressively layered ecosystem. Now, please take a seat as we meticulously analyze these three “old friends” from both theoretical and engineering perspectives. … Read more
⚔️ First, let’s see the effect ⚔️ Install the TFT_eSPI Library Step 1: Click on the ant icon on the right Step 2: Click on Open in English Step 3: Click on Libraries in English Click on TFT_eSPI in English to go to the next interface Step 1: Click on Add to Project Step 2: … Read more
In recent years, artificial intelligence (AI) technology has developed rapidly; however, the high power consumption and cost associated with high-performance hardware have limited its application in edge devices. TinyML has emerged to bring the powerful capabilities of machine learning to resource-constrained microcontrollers, such as the ESP32. This article will take you deep into the tinyml-esp … Read more
Introduction The ESP32-BLE-Keyboard is a library that allows the ESP32 module to function as a Bluetooth keyboard, making it easy to develop using the Arduino IDE. With this library, users can input text into any Bluetooth-enabled device, such as smartphones, tablets, and computers, providing more DIY possibilities for users. Features 1. Fully Compatible with Arduino … Read more
1. Overview of the File System The MicroPython on ESP32 uses the FAT file system by default, stored in internal flash memory or on an external SD card. The main operations include file reading and writing, directory management, and retrieving file information. 2. Common APIs <span>os.listdir()</span>: List directory contents <span>os.mkdir(path)</span>: Create a directory <span>os.rmdir(path)</span>: Remove … 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
1. Key Points of UART Hardware Resources and Configuration UART Resources of ESP32ESP32 supports 3 UART controllers (UART0, UART1, UART2), but actual availability is limited by pin conflicts: UART0: Default for REPL debugging (flashing and serial monitoring), using GPIO1 (TX), GPIO3 (RX) UART1: Some development boards connect to external Flash/SD cards (conflicts should be avoided), … Read more