[color=#111111][font=宋体][size=14px] [/size][/font][/color][size=3][color=#000000][font=宋体]The maintenance of instruments and meters is an indispensable part in the electronic market. Only with good te
Why when I use the internal AD of 430 to sample voltage, as long as I connect the Dupont line, the voltage being measured will change, and the AD has internal resistance to divide the voltage?
1. If the MCU has a serial port peripheral, adding a level conversion chip, such as MAX232, SP3485, will become the RS232 and RS485 interface.
2. RS485 uses differential signal negative logic, +2~+6V
A friend who has just started wrote a simple program and encountered the following problem:module blocking(din, // data input signaldout //data output signal); input din; output dout; wire din; reg do
51mcu
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