资 源 简 介
这是我从网看到的，不用电平的转换IC就可以把串口TTL输入、输出的电平转换成计算机能识别的电平，原图经测试不能用，经我改进后效果很好，大家不妨一试-This is what I see from the network, not power conversion IC level can be the serial TTL input and output level into the computer to identify the level, the maximum should not have been tested, and improved by my very good , we may as well try
