After entering the course, I have been seeing the following interface. I don’t know what’s going on. I waited for a while and then checked the learning progress. There was actually some progress, but ...
[i=s] This post was last edited by lc19840928 on 2016-1-7 15:16 [/i]Brand new development board, mother-child card, 3000 yuan, price negotiable, no machete, link below I found a cheap idle treasure! C...
At 5 a.m. Beijing time today, the U.S. Department of Commerce's International Trade Commission (ITC) made a final ruling on the 337 investigation against DJI: no ban would be issued.In response, DJI's...
[i=s] This post was last edited by fish001 on 2018-11-4 15:12 [/i] The so-called SPWM means that the pulse width in PWM changes according to the sinusoidal law. According to the sampling theory: the n...
[i=s] This post was last edited by ljj3166 on 2018-9-20 16:54 [/i] I can’t stand the constant lighting, so I’ll at least set a few buttons to start.This is the script USER_LED tested last time. It tur...
Today I saw a colleague using a relay control circuit. The relay is external, with a freewheeling diode inside, and the control circuit is open-drain output, as shown in the figure below. There is one...