如何使用VB6通过USB LPT连接LED灯 [英] how to connect LED light through USB LPT using VB6

问题描述

请让我知道帮助!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!

解决方案

无需使用任何语言-引脚1为+ 5V，引脚4为Gnd.
通过一个限流电阻将LED正确地连接到这些引脚(可能取决于470R至10K，具体取决于LED)，并且该LED会亮起.

如果要以编程方式控制其开/关状态，则可能需要基于微控制器构建电路，该微控制器具有嵌入的合适USB堆栈软件和PC上安装的驱动程序. LED控制IMO的过度杀伤.用我的笔记本电脑，但没有给我usbLPT地址，我需要地址！！！

please i want to know help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

解决方案

No need to use any language - pin 1 is +5V, pin 4 is Gnd.
Connect you LED the correct way round to these pins via a current limiting resistor (probably 470R thru 10K depending on the LED) and it should illuminate.

If you want to control it''s on/off state programatically you will probably need to build a circuit based around a microcontroller with suitable USB stack software embedded and driver installed on the PC. Overkill for LED control IMO.

you didnt get my point i already connect LED to my laptop and its on but i want to turn on/off using vb6 but the problem is that i connected usbLPT with my laptop and its not giving me address of usbLPT i need address!!

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