I have previously published a review report on the Tmall Jinglu Lighting Device. I am also planning to get the Bluetooth function, and I will record the learning process as follows:
1. I found a video
Altium Designer 4-layer smart car complete PCB design video tutorial : https://training.eeworld.com.cn/course/5961Altium Designer 4-layer smart car complete PCB design video tutorialMany electronic de
In order to realize the multi-functional control of 51 MCU, how to solve the problem of insufficient ports of 51 MCU when there are many tasks? (The premise is not to add expansion chips)
I recently made a voltage follower using LM358. The manual says 40mA, but I want 20mA. I don't know if it can be used. Can you tell me how to determine the current of the op amp?