<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[diffiluit的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/diffiluit</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; diffiluit]]></copyright><item><title><![CDATA[学习STM32无线射频学习板原理图]]></title><link>https://blog.youkuaiyun.com/diffiluit/article/details/148835832</link><guid>https://blog.youkuaiyun.com/diffiluit/article/details/148835832</guid><author>diffiluit</author><pubDate>Mon, 23 Jun 2025 01:40:14 +0800</pubDate><description><![CDATA[射频模块对电源噪声敏感，需加磁珠（Ferrite Bead）和多个去耦电容（如10μF +                           0.1μF）。：常见的有nRF24L01、CC1101、SI4432、LoRa模块（如SX1276）等，或集成射频的STM32WB系列（蓝牙/Wi-Fi）。：电源、时钟、天线匹配电路、射频滤波、接口（USB/UART/SPI/I2C）等。控制引脚：IRQ（中断）、CE（使能）等。ANT ── [电感] ──┬── [电容] ── GND。└── [50Ω天线]]]></description><category></category></item><item><title><![CDATA[ESP-32最小系统板的原理图绘制与焊接与Arduino原理图的初步学习。]]></title><link>https://blog.youkuaiyun.com/diffiluit/article/details/148385127</link><guid>https://blog.youkuaiyun.com/diffiluit/article/details/148385127</guid><author>diffiluit</author><pubDate>Mon, 02 Jun 2025 19:17:11 +0800</pubDate><description><![CDATA[ICSP（In-Circuit Serial Programming）和USB转串口；：ATmega328P（经典款）或ATmega2560（Mega款）；3.3V通常由另一路LDO从5V降压得到（供3.3V设备使用）。│   电源稳压部分    │ ← 输入7-12V→输出5V。：16MHz晶振+22pF电容（为CPU提供时钟信号）；添加必要的滤波电容（每个电源引脚附近放置0.1μF）。：5V稳压（通常使用NCP1117或LM7805）；AMS1117-3.3V稳压芯片（或类似LDO）；]]></description><category></category></item></channel></rss>