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

PCB铺地过孔的连接形式问题。如何设置只有接地的PAD才是十字连接而过孔是直接连接的。-PCB through hole connections paved the form of the problem. How to set the PAD is the only ground vias cross connections are directly connected.

C MCU 硬件 现场V型是V水电费水电费上档次V字形从(C & MCU sdfgdfhftjgfjghdfjhdejghj)