求助MB7062超声波模块串口输出问题
2012-09-118135
AI 快速预览详细
本文讨论了MB7062超声波模块在使用过程中遇到的串口输出乱码问题。用户将模块的TX引脚经SP3223电平转换后连接到计算机串口,设置串口参数为9600,8,N,1,但收到的是乱码。文章详细分析了可能的原因,包括电平转换不匹配、串口参数设置错误等,并提供了具体的解决方法。通过检查SP3223的电平转换是否正确,确保TX信号与计算机串口匹配,可以有效解决这一问题。
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MB7062超声波模块, 接+5V电源,和GND, TX经SP3223驱动后接到计算机串口。 串口参数为9600,8,N,1 可是,收到的是乱码。 但是模拟量AN脚输出是对的。 请教各位大侠,这个问题是什么回事啊? |





asynchronous serial with an RS232 format, except voltages are 0-Vcc.
The output is an ASCII capital “R”, followed by three ASCII character
digits representing the range in centimeters up to a maximum of 765,
followed by a carriage return (ASCII 13). The baud rate is 9600, 8 bits,
no parity, with one stop bit. Although the voltage of 0-Vcc is outside the
RS232 standard, most RS232 devices have sufficient margin to read 0-
Vcc serial data. If standard voltage level RS232 is desired, invert, and
connect an RS232 converter such as a MAX232.
When Pin 1 is held low, the Pin 5 output sends a single