When drawing PCB board with protel, I will encounter 220V. My master told me to use wire to draw the periphery first, and then paint the rectangle inside. But after I paint it in, it will prompt an er
I would like to ask, has anyone connected to Alibaba Smart Life Open Platform? Can the self-developed APP have the unlocking function and be shared with friends, while friends only have the unlocking
1. Regulated power supply
1. 3~25V adjustable voltage stabilization circuit diagram
The adjustable range of this voltage-stabilized power supply is arbitrarily adjusted between 3.5V and 25V, the outpu
The author said that 2812 allows nested interrupts. Can it be understood like this:for example, when the program is executing the periodic interrupt ISR of EVA, and the periodic interrupt time of the