Regarding mobile phones and tablets, I have read a lot of Baidu posts and review posts on the Internet. I have analyzed the major brands from the perspectives of CPU, size, screen, battery, software,
I changed the pin definition but it still doesn't work, and then I connected the ground wire. I tried adding a power supply but it still didn't solve the problem. I hope someone can give me some advic
I am currently working on a sensor project. The load capacity and distance of the RS485 communication are not satisfactory. I found a chip called PB620. The manual says 256 slave nodes and 3000m dista