advice needed

Hello ,, Looking for advice regards new PCB prototype, made it in china , before going on mass production , if any comment’s please share ,, Appreciate!!!!

I have bought this Delay Relay module off of amazon. I am using it to make a circuit that will act as a latching relay with a delay for a 12V power source. The circuit should work as follows: There is a switch to activate the relay. When activated, the relay will remain on until the 12V power...

I am given a school project where i have to design a mod 60 counter with start/stop and reset functions on a digital trainer breadboard circuit using two 4-bit binary counter IC chips (74LS93). I am also able to use other basic logic gates such as NAND, NOT, AND and OR gates to construct my...

Hi everyone, I am currently a rising senior majoring in computer engineering. I wasn't able to secure an internship this summer so I wanted to come up with ideas for projects. One of my project ideas is creating a police speed gun that uses LIDAR to measure the speed at which a vehicle is...

I'm pretty newbie. i designed a boost converter as hobby and need some help about that. not sure if it will work. how can i fix or improve the circuit. i aimed 5 Vin and 15V 10A max out and use 555 for generate pwm signal for mosfets. But i know 555 can generate max %50 duty cycle and it means i...

Hey there, Recently, I applied for a job in a company and was selected for the same trough the campus recruitment. However, when we had to start off with our internship, we were not given this opportunity, and also we have still not received a confirmation letter from the said company. We were...