It's a bit late, but I've been curious about Spresense for a while, and since it was on sale, I decided to buy one. Since I have it, instead of just doing a simple LED blink, this time I will try ...
Most hobby weather stations die the moment the Wi-Fi drops. The phone app goes blank, the cloud dashboard freezes, and the data you were collecting is gone. I wanted the opposite: a station I can set ...
Since the core version 1.1.1, it is possible to customize some core definitions or compiler options by adding a file named "build_opt.h" in the sketch directory. This file allow to used the "@file" ...
本文详解基于Arduino-ESP32框架的WAV音频播放器实现，核心涵盖SD卡SPI挂载、I2S外设初始化与DMA缓冲配置、WAV文件头规范解析（支持非标准44字节结构）、流式音频数据读写同步机制，以及常见硬件噪声、采样率失配、SD卡句柄泄漏等5类典型问题的定位与解决。项目代码轻量、模块清晰，适用于嵌入式 ...
简介：本资源是一份面向智能卡开发工程师、嵌入式安全从业者及高校信息安全专业学习者的APDU协议深度解析资料，聚焦智能卡与终端间通信的核心指令机制，系统解决APDU命令格式理解难、响应状态判读模糊、常用指令（如Select File、Read/Update Binary、Verify PIN等）参数组合易错等实际问题。文档为单 ...
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