ECG amplifier board and PCB in altium designer format USB Interface, PIC18F4550 Microcontroller, Right-Leg Drive Circuit and Ready for Optical Isolation. Operates with 2 x 9 V batteries. Important: Do not use this circuit with any other DC or A

VC++ 和 AVR之间的USB通信，有源代码的-VC++ and the USB communication between the AVR, active code