这是用atmega8制作的usbisp编程器，有一个用protel dxp 画的 PBC图和 原理图，加固件和烧写软件！烧写M8时注意配好熔丝！-This is used atmega8 produced usbisp programmer, there is a schematic diagram and pcb, reinforcement parts and software programmer! With good attention to fuse!

超声波测距程序，包括电路图和PBC。测量距离：20cm到500cm。可根据环境温度实施动态调整，测量精度高。-Ultrasonic Distance Measurement procedures, including circuit diagrams and the PBC.

一个可以进行ＰＢＣ板极通信的通信格式转换软件-PBC can be a great communication board communication format conversion software

测距小车内含详细程序和PBC文件，很实用-measure diantance car