[align=left] 1>[font=宋体]Project description: The DA outputs a sine wave signal to achieve a given (the frequency range of the sine wave is 50-500HZ), which is amplified by the subsequent analog circui
Recently, someone brought a broken LED lamp for repair. After disassembly, it was found that most low-power LED lamps are almost all RC step-down circuits. As for safety and stability, it depends on t
I have recently fallen in love with remote control and want to build an Internet of Things platform by myself. Then I pulled in two friends, one who is a website developer and the other who is a Java
[font=微软雅黑][size=3]In the blink of an eye, it is already August. Attention, friends from Ufun, [color=#006400][b]On August 10[/b][/color], we will soon enter the first stage of award judging for the e
According to the website of China Consumers Association, with the continuous improvement of people's living standards and economic conditions, more and more consumers have begun to pay attention to an