If you are interested in deploying LoRa — the low power long-range wireless technology — you might enjoy [Rui Santos’] project and video about using the ESP32 with the Arduino IDE to implement LoRa.
The range of hardware that comes on some dev boards these days is truly staggering. Those little LoRa boards are a prime example — ESP32 with WiFi and Bluetooth, a transceiver that covers a big chunk ...
前言变压器是开关电源的核心部分，有磁芯，骨架和线包组成，实现电生磁和磁生电的转换。AC-DC手机电源适配器，个头最大的元件就是变压器了，绕着黄色绝缘胶带。拆下开关电源高频变压器，看一看内部线包是怎么缠绕的。一次侧特写。二次侧特写。剥离 ...
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