I used to buy 20 tablets at a time and buy more when they were used up. But the sellers on Taobao said that they would not have the goods until the middle of next month. What should I do in the next h
I use the GPIOC6 pin on J38. The specific operation is as follows. Please help analyze why the high and low level settings are not implemented:1. echo 70/sys/class/gpio/export2. echo out/sys/class/gpi
[size=4] Leakage current refers to the current formed between mutually insulated metal parts or between live parts and grounded parts of equipment under the action of applied voltage, through the surr
The 2812 runs correctly during simulation. When changing a .cmd file to burn, a warning appears for initializing RAM as follows:warning: Because this program contains initialized RAM data it may run s
This article first introduces the general knowledge about EMI and various buffer attraction circuits used in switching power supplies. Then it introduces the principles of common mode and differential