I'm going to do a project recently that requires controlling the forward and reverse rotation of a 220V AC motor. This requires two 943 relays and BT136 to achieve this. Does anyone have a good circui
I received a call from home last week saying that the board had arrived. I was on a business trip and hadn't seen what it looked like, but today I finally saw it. I'll power it up and run the LEDs fir
I just renovated a house this year. Naturally, I looked up some information about formaldehyde and decoration pollution. I saw that some netizens posted related posts and there were many misunderstand
I now have a board, in which I have written the USB firmware program, but I don't know how to develop the driver for the PC. I want to learn it, and hope everyone can give me some advice. I know the d
Revenue statistics of the world's top 14 wafer foundries in 2005 Company Name 2005 Revenue (US$ 100 million) Headquarters TSMC 82.2 Taiwan UMC 28.2 Taiwan SMIC 11.7 Mainland China CHARTERED 11.3 Singa