The above picture is the optocoupler input circuit that I often use. I have never studied it before.
Question 1: What is the purpose of the 300 ohm resistor R2 in the circuit?
Question 2: After the sw
[i=s]This post was last edited by Baboerben on 2019-11-6 21:33[/i]Recently, I have been doing software development on TI's processors. The project requires network communication functions. However, ne
First of all, I would like to thank EENanxin for organizing this evaluation activity. After the package was delivered to the company building (divided into two buildings, north and south), there was n
1. Introduction
After thinking about it, if there is a screen, then we must do something serious. Then I thought of making a simple combination of RTC and screen first, because the official provides R