I'm curious where should I apply this voltage? If it will change the threshold voltage, but I can't work out where you would attach a wire to for the body terminal of a MOSFET when they only h...
I'm trying to implement an LCD driver. All my pins have been initiated as GPIO output mode. My question is, how do I read a data if all of the GPIOs are in output mode? I mean, we can always chang...
What is negative resistance, how is it related to oscillators?In my understanding, it's something to do with decreasing current vs increasing voltage. Is it a necessary condition for oscilla...
I have a 12V relay that I want to be able to energize with two inputs. These inputs might be on individually, or both at the same time. And they must be isolated from each other completely. How can I ...
I have a problem with bumping the usb cable that powers my RPI3B+ and it wiggles out and kills power. I was curious if I could cut off the USB end, solder those two wires to female GPOI connectors and...
It is always seen that audio amplifier work at fixed gain, while attenuating the signal at the input to change the volume. That doesn't sound good since you decrease signal to noise ratio. Also re...
Why does an inductor cause current to lag voltage? Doesn't a conductor need to have current running through it while it is passed through a magnetic field to produce an opposing EMF?
Since I've no experience with buzzers, if there are any good ways to choose the right resistor and npn. By the way, I'm using STM32's MCU, supplied with 3V1 to drive a buzzer (GSC4417YA-16...
Hi all, I need to control the speed of a handful of small pumps independently. The speed is directly related to the voltage supplied. I can't really use pwm and the voltage to the pumps must...
