1answers

[Others] How to achieve it? Motor generator polarity reversal?

I’m working on an Arduino project where I want a motor( currently using a dc motor) to generate electricity and then reverse the polarity if it’s spun the wrong way. Any one know how to achieve this?I...
2answers

[Others] How to convert signals from a raspberry pi to a relay board.

How to use an TXS0108E bi-directional logic shifter to convert 3.3V signals from a raspberry pi to a 5.0V signal to a relay board. I'm trying to trigger a 5 volt relay board using a raspberry...
  • answered Jul 13,2020
    by Joson
2answers

[Others] Stencil design for BGA components in Eagle. should I disable the tCream layer for this package?

Hi all,I'm working on a design that uses a power switch(picture showed below) with a 6-UFBGA package to switch between USB and battery backup power. I will be placing the components by hand a...
  • answered Jul 13,2020
    by Andrew
2answers

[Others] Eagle question: How to ground the mechanical pads of a part?

Hi everyone,I'm making a device with an SD card slot. The SD card holder is just a surface mount metal shell, and it has 4 foot pads that solder down, and are not electrically connected. I'd l...
  • answered Jul 13,2020
    by Joson
2answers

[Others] Does anyone in Maker Space know the producer of headphone jacks marked with a K in a square?

Does anyone in Maker Space know the producer of headphone jacks marked with a K in a square? And honestly, who′d thought this was actually soldered onto a PCB? There′s almost no lead on the pins, no w...
1answers

[Others] Can I swap out the photoresistor with a photodiode, what should i pay attention

I'm in the process of building a project and would like some advice. It's a light-sensitive audio trigger built from a simple circuit interrupted by a photoresistor.However, photoresistors hav...
2answers
1answers

[Others] Can anyone explain the difference between simulation and emulation

I get confused about the meaning of simulation and emulation.Could anyone explain the difference in terms of programming? What is the difference between these two terms? Thanks
2answers

[Others] How can i copy the format of the first rep_sht to the two other rep_sht?

Hi,I have a design containing 3 identical circuits in a repeated sheet (let's call it rep_sht) which contains a couple of subsheets. I would like to layout the first rep_sht and be able to copy th...
  • answered Jul 08,2020
    by Joson
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Ranking Name Answers
1 PCBWay Team 4
2 KhronoSound Audio 1