Do I need to draw my own circuit board for the electronic competition? Or do I use a ready-made development board?
Do you need to do the welding yourself?
Newbie, please help! I'm about to cry!...
I'm adjusting the driver of enc28j60 recently. It was successfully driven on f103 board before. Now it is transplanted to f407. I changed the library of f407, spi interface function and pin definition...
As the core component of the transformer, the materials used in the iron core play a key role in the performance and price of power transformers and electronic transformers. For example, the price of ...
I saw a step-down circuit of the LM3478 chip, but I don't understand the peripheral circuit of the chip, especially pin 1 (Isen). According to the datasheet, it should always be in short-circuit prote...
I've recently been working on a PD protocol power bank, and I'm planning on making a bidirectional 65W power bank. The power supply in the PD protocol is negotiated between the source and the sink thr...
In the past one or two years, Huawei and Apple have been fighting each other. This year, Apple's "first move" is the iPhone 11, and Huawei's "second move" is the Huawei Mate 30.After a fierce debate b...