LM386 is an audio power amplifier produced by National Semiconductor Corporation, mainly used in low-voltage consumer products. In order to minimize the number of external components, the voltage gain
[size=4]To configure the key interrupt, you need to set P1.3 port as input first, and set the pull-up resistor to ensure stability. [/size] [size=4] [/size] [size=4]P1DIR &= ~BIT3;//Set P1.3 as input[
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[align=left][font=Verdana, Arial, Helvetica, sans-serif][size=4][color=#000000][backcolor=white]In the first chapter, learn I/O first. I/O operation is the most basic, and these registers must be firm
I use STM32F103RCT6 to make a serial port to WIFI module. The serial port data volume is relatively large, so I made an array of global variables for cache. But I found that the maximum length of the
[i=s]This post was last edited by tiankai001 on 2018-2-11 13:41[/i] [align=left][color=rgb(34, 34, 34)][font="]The low-frequency signal generator (function signal generator, commonly known as signal s