Why is there a resistor and capacitor connected in parallel at both ends of the microphone (the part circled in red)? What is the role of these two components here? Can they be removed?
The circuit board I made is powered by the USB port of the computer. I feel that the voltage should be relatively stable. Is it necessary to add a voltage regulator circuit? I wanted to add a 7805 thr...
In a double-layer board circuit, if the top layer is covered with GND and the bottom layer is covered with VCC, how will this copper laying method affect the circuit and is there a simulation solution...
As part of a project I undertook, I built a system that includes sensors to monitor certain biomedical parameters. I implemented this whole system with a central microcontroller and various developmen...
Is there a way to not use a spdt switch for turning the controller on and off? I am trying to make it turn on from the steering wheel. I noticed you gave a BOM list. Does it matter on type of res...
I want to make a PCB as one design, but with a part as a 'break-off' section - see the picture with the large slot near the top of the board. The board measures about 130 x 100mm overall.Is this the b...
