In the previous article , the lvgl case was compiled using the tool chain in " d1Ali Mini Program_SDK " . At that time, this tool chain was configured on the Ubuntu virtual machine. Today, the tool ch...
1. Incorrect use of language
When typing code, you often need to convert between Chinese and English, so you often accidentally use some symbols incorrectly, using Chinese characters. For example, the...
Regarding the derivation of the circuit voltage transfer function T(S) = Vo(S)/Vi(S), the following picture is the circuit and the derivation result. I can't find the pattern, I only know to convert i...
With the continuous development of electronic technology, the evolution of power adapters has also encountered difficulties. For example, Moore's Law has made the host of various devices smaller and s...
Regarding this circuit diagram, I think there are two questions. 1. The 220V comes out and passes through the d1n4148 diode to form a rectifier bridge, so why is there a node at the place shown in the...