Why Do Devices Need Accurate Time? The importance of time synchronization in the IoT ecosystem is self-evident: • Data Timestamping Guarantee: Sensor data must have accurate timestamps for correct analysis and processing. • Security Authentication Mechanisms: Security mechanisms such as TLS certificate validation and JWT tokens rely on accurate time. • Logging and Debugging: Accurate … Read more
In addition to its powerful serial communication interfaces (UART, SPI, I²C, I²S) and wireless connectivity (Wi-Fi, Bluetooth), the ESP32 integrates many special function interfaces and peripherals, making it excel in scenarios such as IoT, sensor nodes, human-computer interaction, and motor control. Here are some key special function interfaces of the ESP32: 1. Analog-to-Digital Converter (ADC) … Read more
Introduction The ESP32 is a powerful microcontroller with Wi-Fi and Bluetooth capabilities, widely used in IoT and embedded systems. Within the ESP32 ecosystem, the MJPEG multi-client streaming server is a significant feature that meets the demand for multiple clients to access video streams simultaneously. This article will introduce the ESP32 MJPEG multi-client streaming server based … Read more
Recently, I discovered a strange and interesting issue. It became even more intriguing when intertwined with other related problems. Many development boards or small modules that require USB serial connections often use the CH340g chip from Nanjing Qinheng, so the driver is either automatically installed by Windows or downloaded from the official website as CH341SER.EXE. … Read more
This is a story about spending a bowl of vinegar for a pot of dumplings. Previously, to test whether AI could write microcontroller code, I used Manus for testing. You can check out the process in this article: Can AI Programming Be Used in Embedded Development? Experience Manus Writing ESP32 Firmware, to put it simply: … Read more
Comprehensive Guide to the ESP32 Memory System: A Beginner’s Guide to Avoiding Pitfalls from Crashes to Mastery When your program crashes for the 10th time, and the serial output shows a red warning of “memory overflow”—Don’t panic! This might be a rite of passage for every ESP32 developer.Today, let’s clear the fog and accurately allocate … Read more
Follow and star our public account for exciting content TRMNL is a 7.5-inch wireless black-and-white e-paper display based on the ESP32-C3 RISC-V WiFi and Bluetooth SoC. It features a customizable design that allows users to disassemble the device, modify (open-source) firmware, and obtain API keys. The default 1,800 mAh battery lasts over 3 months on … Read more
A Chip, Two Brains: A Sci-Fi Guide to ESP32 Dual-Core Processing Collaboration Engineers shout in forums: “Clearly, there are two CPUs, but the code only runs on one core!”The harsh truth: 90% of developers only utilize 50% of the ESP32’s computing powerToday, we unlock its full potential—an overclocking symphony of dual-core parallelism. 01 Dissecting the … Read more
Waveshare has launched two new development boards, one of which is based on the ESP32 chip and features a built-in circular display. This article explores the profound impact of such hardware on smart homes, edge computing, and the popularization of AI from the perspectives of AI and large language models (LLM). 01 New Breakthrough in … Read more
The power design and power management of the ESP32 are core aspects of IoT device development, directly affecting system stability, battery life, and thermal design. Below are detailed power supply solutions and power management strategies: 1. ESP32 Power Supply Requirements Voltage Range Recommended Voltage: 3.3V (Absolute maximum range: 2.3V~3.6V) Do not connect directly to 5V; … Read more