Quartz crystal resonator (Xtal) is a widely used frequency component. Manufacturers have listed basic parameters such as nominal frequency, frequency stability, operating temperature, load capacitance
I recently wanted to make an adjustable power supply, and then I found some information on the Internet. I'll record it here and share it with netizens who want to make their own.Some homemade videos
Introduction: OpenWrt can be described as an embedded Linux distribution. (Mainstream router firmwares include dd-wrt, tomato, and openwrt.) Compared to a single, static system, OpenWrt's package mana
[i=s]This post was last edited by sky999 on 2021-3-8 06:18[/i]Pin 4 of 1308 is the enable pin. It works when it is greater than 1.5V and stops when it is less than 0.4V. I want to achieve output when