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...
I have designed a PCB using the ttgo t-display and other components. I have been attaching it to the PCB that you make for me. Can you install this board to my PCB so I don't have to do it later?T...
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...
I'm building something with an arduino nano which uses 8 buttons (digital) and 8 potentiometers (analog). I would like to add more inputs to the build, but need to be able to use multiple inputs a...
1. Some people say that capacitive reactance cancels out inductive reactance, so the impedance of an LC circuit is 0 Ω to its resonant frequency (not accounting for wire resistance).2. Others say that...
good afternoon. is it possible to make a copy of a printed circuit board from a ready-made sample? small changes will be required to the finished product.I send the sample in the attached photo.if req...
How much does using microvia in my board design at to the manufacturing cost?I don't see micro via as an option in the instant quote process.My board is 6 layers, standard 10cm x 20cm.
