Hello, 7th floor, I want to ask about your 2-wire controlled 12864, what is the PSB connected to? Is it grounded? I use an external 5V power supply for the LCD (5V power supply and MSP430g2553 share t
Some issues in PCB circuit design and production Author: pcbask Avoid vias close to SMT pads If the vias are not covered with oil, we will make the vias too close to the pads of SMT devices during lay
·Conducted EMI transmits noise through power wires, so the EMI generated by electrical devices connected to the same power system will interfere with each other through the power lines. In order to ef
I want to make an ultrasonic transmitter module, and I am using a circuit diagram from the Internet. The circuit diagram is as shown above. I would like to ask what the function of the 4069 in the dia