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Description: max232资料-max232
Platform: |
Size: 336729 |
Author: 吴占峰 |
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Description: max232资料-max232
Platform: |
Size: 336896 |
Author: 吴占峰 |
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Description: 该小制作所需要的元件很少：单片机TA89C2051一只，RS232接口电平与TTL电平转换心片MAX232CPE 一只，红外接收管一只，晶振11.0592MHz,电解电容10uF4只，10uF一只，电阻1K1个，300欧姆左右1个，瓷片电容30P2个。发光二极管8个。价钱不足20元。
电路原理介绍：
主控制单元是单片机AT89C2051,中断口INT0跟红外接受管U1相连，接收红外信号的脉冲，8个发光二极管作为显示解码输出（也可以用来扩展接其他控制电路），U3是跟电脑串行口RS232相连时的电平转换心片，9、10脚分别与单片机的1、2脚相连，（1脚为串行接收，2脚为串行发送），MAX232CPE的7、8脚分别接电脑串行口的2（接收）脚、3（发送脚）。晶振采用11.0592MHz，这样才能使得通讯的波特率达到9600b/s，电脑一般默认值是9600b/s、8位数据位、1位停止位、无校验位。电路就这么简单了，现在分析具体的编程过程吧。
-err
Platform: |
Size: 34816 |
Author: xiaoyu |
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Description: MAX232手册 MAX232手册 -MAX232手册MAX232手册MAX232手册
Platform: |
Size: 337920 |
Author: 雷鬼里 |
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Description: 红外遥控解码器
该小制作所需要的元件很少：单片机TA89C2051一只，RS232接口电平与TTL电平转换心片MAX232CPE 一只，红外接收管一只，晶振11.0592MHz,电解电容10uF4只，10uF一只，电阻1K1个，300欧姆左右1个，瓷片电容30P2个。发光二极管8个。价钱不足20元。-The small infrared remote control decoder component needed to produce very little: a microcontroller TA89C2051, RS232 interface, TTL-level chip-level conversion MAX232CPE a heart, an infrared receiver, crystal oscillator 11.0592MHz, electrolytic capacitors 10uF4 only, 10uF one, a 1K1 resistor, 300 ohms is about 1, ceramic capacitors 30P2 months. Light-emitting diode 8. Price of less than 20 yuan.
Platform: |
Size: 17408 |
Author: 付兆海 |
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Description: 本迷宫小汽车选用8位STC90C52单片机为控制器，通过3个红外光电传感器E18-D80nk对信号进行采集，采集到的信号经串口转换MAX232CPE处理后传给STC90C52单片机，经单片机处理后，发出控制命令给L298N，驱动2台直流电动机进行相应的动作。该小车实现了前进、后退、左右转弯、避障以及显示运行时间等基本功能，整个系统结构简单，可靠性高，实验测试结果满足要求-STC90C52 microcontroller pass the maze of car use 8 STC90C52 single-chip controller, acquisition by three infrared photoelectric sensor E18-D80nk signal acquisition to signal through the serial port conversion MAX232CPE processing processed by the microcontroller, issue control commands L298N drive 2 DC motors corresponding action. The car forward, backward, left and right turns, obstacle avoidance and display the basic functions of the operating time, the entire system of simple structure, high reliability, and experimental test results meet the requirements
Platform: |
Size: 26624 |
Author: 李俊君 |
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