[code]1. Several concepts about 485 bus: 1. The communication distance of 485 bus can reach 1200 meters. According to the theory of 485 bus structure, under the premise of ideal environment, the trans
[i=s]This post was last edited by donkeygl on 2015-6-11 16:56[/i] I connected a voltage follower to the DAC output pin, but it didn't work at all. I had to turn on the built-in voltage follower. I tri
On the way back, I knew that there would be no follow-up. The HR department must have said something. But I don't regret it. If there is a second time, I will still complain. I don't want to be nosy,